PRE-MATCH
STRATEGY
- Get yourself in perfect physical condition. Work hard to build
up your body, eating right, and get the proper rest. Even though
major away competitions are fun, get to bed early the night before
a match.
- Pay attention to what the coach says about your opponent and
plan accordingly. Plan to use a different initial attack if your
opponent has watched you.
- Know your opponent's style and his strong and weak points. Do
not allow his past record or build to destroy your confidence.
Study him carefully before weigh-in and remain impersonal toward
him until after the match.
- Specialize in at least one series of moves from each position
(top, bottom, standing) and learn at least one other series. Have
a desperation take-down move (preferably a throw) available if
you need it.
- Practice these moves hundreds of times to perfect them.
- Know/learn the current wrestling rules for the style you are
competing in.
- Never let your opponent know if you have been injured, sick
or are under weight. It may give him the added confidence that
he needs to defeat you.
- Never sell yourself short or lose sight of your goals.
- For general preparation, do more than what is required by the
coaching staff, as well as working hard to do what is required
correctly. Make a personal commitment to become the best that
you are capable of becoming. Wrestle off-season if there is a
program available. Go to all the open tournaments you can.
[Back to the top] GENERAL
MATCH STRATEGY
- Don't be afraid to lose, have an offensive philosophy going
in, and constantly use a proper attack.
- Make your opponent wrestle your style. Force the match and keep
him off balance by attacking first and continuously.
- If you have reach, speed, or balance on a man, use these to
your advantage. Mix-up them up in your attack, the odds favor
you.
- If you are stronger, overpower him. If you are weaker, don't
fight his strength but instead concentrate on perfect technique.
Technique will win over strength nearly every time.
- If you are in better shape, set a pace he can't stand but don't
do all the work. Make him lift your weight every time possible.
- Keep a cool head and remain poised and confident. Never allow
calls by the referees or actions by your opponent or the fans
upset your wrestling attitude or technique. Never make the referee
mad at you.
- Never stop wrestling until the whistle blows. This includes
not giving up a defensive move until the referee calls the points.
- Do not do anything in a match that you haven't worked hard to
perfect in practice.
- Never let your opponent know that you are tired.
- Be a "chain wrestler", always performing a second move if the
first doesn't work. Use holds, which blend together, either as
a fake to set-up, or as a follow-up.
- A desperation move is risky and should only be tried at the
end of the match when you "must" get points. Remember, a loss
by one point is as bad as a loss by several points.
[Back to the top]
TAKEDOWN STRATEGY
- Relax when you are out of range. Being tense takes valuable
energy.
- Keep a proper body position (stance) when you are in range,
especially when you are walking into a man. Don't stand straight
up or with your hands near your head.
- Never shoot a leg from farther out than an arms length.
- Never shoot a takedown without first destroying your opponent's
stance. Set up all takedowns!
- If you tie up, control all tie-ups and fight for the inside
position. If you can't control a tie-up, don't tie-up!
- When moving, step with the foot in the direction you are going.
Never cross your feet.
- Keep moving your feet in short (about 12") steps, constantly
changing your lead foot and never developing a pattern.
- Concentrate on getting the deepest penetration possible when
you shoot. Aim a few feet behind your opponent.
- Keep your head inside and tight when you step to your opponent's
outside and place your head outside and tight when stepping to
the inside of his legs.
- Never allow your head to get lower than your hips (overextended),
even while you are in motion.
- Never allow both of your knees to touch the mat at the same
time. Always keep a trailing foot behind for support.
- When attacking the legs, never stay on one knee any longer than
necessary. Either follow-through or withdraw IMMEDIATELY!
- If possible, take your opponent to his back on your follow-through.
- When withdrawing, keep to the inside with proper body position
and take small steps.
- If you are taken down by your opponent, land with your props
wide and extended outward. Your arms should be slightly forward,
never down and backwards. Also, your hips should be parallel to
the mat and lower than your head. Then hit an offensive maneuver
as quickly as possible. Takedowns are not awarded until control
has been firmly established.
- When countering takedowns, stay off of your knees and use your
weight to stop your opponent's motion and destroy his body position.
[Back to the top] TOP
WRESTLING STRATEGY
- MOVE FIRST on the whistle or immediately after assuming the
top position to make your opponent counter you rather than attack
you.
- Either control your opponent's HIPS, destroy his PROPs or attack
his HEAD.
- Learn how to ride from both sides.
- Stay behind your opponent's arm pits, unless you are attacking
his head.
- Make your opponent carry your weight as often as possible.
- Ride on your toes in order to have maximum mobility and produce
maximum pressure.
- Remember you have four props of your own that you must protect
in order to maintain a good base.
- Keep a wide base and do not fall to your side or drop your head.
Keep your hips parallel to the mat as often as possible.
- BREAK YOUR OPPONENT DOWN! The closer he gets
to the mat, the greater will be your leverage for pinning combinations.
- Grab an ankle pick at the shoelaces & get it off the mat as
quick as possible. Lift up first then drive forward.
- When you chop a man down, cut the arm where it bends and move
your outside knee forward in order to prevent your head from dropping.
Keep your knee in his butt.
- After your opponent is broken down, WORK FOR THE PIN IMMEDIATELY,
a man on the defense cannot be on the offense at the same time.
- If you get three points ahead, work nothing but pinning combinations.
- Nearly always, get perpendicular to pin your opponent.
- Use a half nelson to apply pressure on your opponent's head,
place your palm on the head, not the neck.
- Keep chest on chest (or back low on chest) with your head up
and knees off of the mat while pinning.
- Vary your style and technique; do not keep using the same attack
unless consistently successful against your immediate opponent.
- If your opponent is in the process of reversing and you feel
that you are equal or better than him on takedowns, back off and
give him "one but not two."
- If you are behind late in the match and feel that you cannot
turn your opponent over but can take him down, let him go and
work for a takedown (providing the score is close).
- Learn to use your legs. Keep your hips on top and parallel to
the mat. Keep your weight low on his back with your elbows below
his armpits in a cross body ride. Never force legs on your opponent.
[Back to the top] BOTTOM
OR DEFENSIVE STRATEGY
- Be ready to move at all times. Watch the referee.
- Adapt your referees position to the move which you intend to
do.
- Move first and keep the top man countering you. Don't get tied
up or lose the offense.
- Specialize in a series of moves. You should also have a second
series which you know well and go to in emergencies.
- Always keep a good base or return to it quickly if you lose
it. Listed below are important ingredients of a good base:
a. Keep your props wide
b. Keep your arms slightly bent
c. Keep your head above your hips
d. Keep your center of gravity over your base
e. Keep your hips and shoulders parallel to the mat.
- Protect your props. When one of your props is being attacked,
either remove it completely or get all your weight on it as quickly
as possible.
- Destroy the top man's props! One of the most effective ways
of doing this is to get HAND CONTROL.
- Know the five directions you can go and try to use height to
your advantage as often as possible. Remember that the lower and
more spread out your base becomes, the less mobility you have.
- When turning to face your opponent, use a HIP-HEIST to make
your quickest turn.
- Never reach back over your opponents back.
- Don't lay on your stomach, come up to your knees by bringing
one knee up to the side and pushing back over it.
- If you can't get up off of your stomach, keep your head up and
elbows in. Be alert for all nelsons, turn the head away from the
half and pull the hand off immediately.
- If you can't get out, get off of the mat and get a fresh start
before you get broken down to tied up. Do not do this in an obvious
manner or you will be penalized.
- Practice all moves with a top man on both sides. If you still
have trouble escaping from one side, learn how to change your
man over by moving your weight and hips.
- Practice with your eyes closed to learn how to "feel" weight
shifts.
[Back to the top]
AFTER MATCH STRATEGY - (Regardless
of a WIN or LOSS!)
- Shake your opponents hand graciously and don't throw your head
gear.
- Analyze the mechanical errors you made and make a note on where
you need work.
- Analyze your pre-match and match attitude and mental mistakes.
- Do your best to correct them at practice.
[Back to the top]
SUMMARY OF WRESTLING BASICS
- Try to watch what works for others against your opponent, then
use them.
- Force your opponent to wrestle your style by initiating first.
- Plan at least 3 "chain" moves in a row. The first two tend to
set up your opponent for the third move.
- Learn all moves even though you might never use them. It will
help you counter against them.
- Stay level headed even under extreme pressure by your opponent.
Stress uses up energy very fast and keeps you from being methodical.
- Don't continually use a move that fails more than twice.
- Keep your head up on the bottom and try to stay off your knees.
- Always keep your elbows close to your body.
- Shift your body so you don't carry your opponent's weight.
- Don't use moves in a match that you haven't first developed
in practice.
- Shoot only if you can reach out and touch your opponent's elbows
and stand with your feet apart and your hands out in front and
low.
- Fake that you have lots of energy left during a break. Never
let on to the referee or your opponent how tired you really are.
- Explode off the bottom on the whistle, don't just move or sit
there.
- Take direct shots and shift stance continuously to prevent telegraphing.
- Don't hold on to a move that is blocked or can't be completed.
- Practice all out the same as a match, but don't practice conservatively.
You can't loose at practice so try a lot of moves and technique.
- When facing an opponent who knows as many different moves as
you do, stick with basic technique and traditional moves.
- Be perpendicular to your opponent and keep your head down when
pinning.
- Always drive the head into your opponent on a takedown, never
walk around with your butt up.
- The best time to move again is right after a successful move.
- Practicing even once a week off season puts you way ahead of
those who only practice during the season.
- Wrestling has many styles, each emphasizing different techniques
to accomplish the same objective. The more styles you learn, the
more sophisticated and "rounded" your attack will be.
- Fight to the very end, never quit, especially if your opponent
is stalling.
- Conditioning is a personal responsibility.
- You only get out of wrestling what you put in.
- Never admit you lost, only that you had a bad day and things
will get better. **I don't know about this one , rlr
- Everyone draws a terrible referee occasionally and not much
can be done about it.
- Don't expect sympathy when you get hurt, especially in high
level matches. Sympathy makes it hurt more and prevents you from
concentrating on getting the job done.
[Back to the top]
Goal Setting Guidelines
Do you have Championship Aspirations?
I encouraged you to set some challenging, ambitious long-term goals
for yourself. If you only set easily obtainable goals, you will
never reach your highest levels of achievement. Do not be scared
to strive to live your dreams.
To increase the likelihood that you will achieve your highest goals,
you must set a variety of smaller goals. Setting numerous short-term
goals will provide you with continuous challenges. These challenges
will increase your level of motivation and enhance your performance.
It does not matter if you are a beginner, a veteran college wrestler
or an experienced coach, goal setting allows you to focus on the
areas you need to improve on and objectives that you want to achieve.
Here are some goal setting guidelines below that will help you
identify and achieve your highest goals during the upcoming season
and the years to come.
- Be Specific, setting technique and training goals, as well as
performance goals.
- Set a variety of goals, including a combination of short, medium
and long-range goals.
- Make your goals personal. Personal goals are more meaningful
because they are what you want for yourself, not what others expect
of you.
- Make your goals challenging yet realistic. Many of your short-term
goals should be easily achievable while others should be lofty.
- Post your goals. Write your goals down and refer to them often.
Post your most important goals in your bedroom, on the fridge
and/or in your locker.
- Do not fear failure. If you only set easily obtainable goals,
you will never reach your highest levels of achievement. There
is no crime in not reaching your goal but only in failing to set
one.
- Evaluate your goals. Refer to your goals regularly. Check them
off as you achieve them and set new goals. You must constantly
evaluate where you are and where you are heading.
- Design a strategy for achieving your goals. Decide how much
and what type of work it will take to achieve your goals. Then
design and follow a training schedule that will allow you to reach
them.
- Make a Commitment to your goals and work plan. Anyone can set
a goal. Those who achieve their goals have the discipline to stay
focused on their training and the perseverance necessary to work
through the inevitable frustrations.
- Believe in yourself! There is a big paperweight rock on my desk
staring me in the face as I share my thoughts with you. It says
if you do not believe in yourself...chances are that nobody else
will.
It does not matter who believes in you as long as you believe in
yourself. If you wish to excel in wrestling or life, you must have
meaningful, concrete goals and you must believe deep down inside
that you will achieve them. I encourage you to make a commitment
to achieving your highest goals today!
Author Unknown
[Back to the top]
FOCUS
Chances are you’ve heard it yelled to a wrestler by his coach.
Often, after a tough scramble, a controversial call, or a big move.
That one word, is meant to be both insight and comfort. FOCUS,
the coach yells! FOCUS, you can win this match.
FOCUS, your still in it. FOCUS!
The wrestler that has it is often the one that can achieve that
championship status, whereas, the wrestler who is still seeking
focus is still trying to climb to the top. Wrestling coaches know
that their wrestlers at some point during the season in the heat
of a match will only have a couple of fleeting seconds to return
to FOCUS. The difficult thing is to teach wrestlers
what focus is and how to achieve it, when the coach yells from the
corner after the out-of-bounds break to focus.
As a wrestling coach yells to focus, the coach is engaging the wrestler
to return back to only the moment of the match that is right of
front of him/her. The coach is urging him/her to recognize the situation
at hand, leave the referees calls, the adrenaline rush, and the
past scored points aside. Focus is a powerful tool for a wrestler
to have at his/her command. So, as a coach do not neglect to teach
what it means to wrestlers.
F-O-C-U-S can be better understood by wrestlers,
if it is viewed as a five-letter acronym instead of just an often
hurled word in the heat of match. Teach wrestlers to view each letter
as a distinct action that must be undertaken to achieve focus.
First of all, the F of focus stands for forget.
Forget anything negative that has occurred. Forget the referees
call. Forget the locked-hands call that tied the match. Forget the
cheap shot that you received out of bounds from your opponent. The
coach is yelling at the wrestler to focus, but to achieve this the
wrestler must forget anything negative.
Second, O if the wrestler is to be focused, then
he/she must organize him/herself. To organize, the wrestler must
recognize what is the moment of the match. What is the exact situation
that must be wrestled? A successful wrestler first forgets the negative
and then organizes for the precise situation that he/she is in.
For example, a wrestler has just given up a reversal on the edge
and went out of bounds. Much has happened in this change of control.
There might be only a few seconds left, the wrestler might have
just went down by a point, the match might be slipping away. Hopefully,
the wrestler in the few moments he/she has to get set on bottom
will know how to organize for that situation. A wrestler organizing
for the moment in the match must recognize the score, the time left
in the period, the position to be wrestled, and the attacks to be
wary of that his/her opponent will initiate. There is a great deal
of information to process in a short time for a wrestler to be organized
and focused. It is up to the wrestlers coach to help to teach a
wrestler the skill of organizing for the moment of the match during
a whistle break.
Third, C Now the wrestler must, Concentrate, on
the action that must be taken to win in that moment. A good and
focused wrestler will know if they are on bottom and there is only
a 12 seconds left in the third period and they are down by one,
that it is important to be organized for that precise moment. Most
coaches would probably be hoping their wrestler realizes that with
the limited time on the clock, their more advanced scoring maneuvers,
such as a granby roll, would take too long to score. A wrestler
who is concentrating must pick the best and precise move to win.
Fourth U, In the seconds before the whistle initiates
a re-start of action in the match the wrestler must unwind. Unwinding
is really a simple process. It is a matter of the wrestler taking
control of the moment. When a wrestler is at a critical point in
the match you would hate to see him/her rush back to the center
without being focused on the moment. The process of unwinding is
that reassuring deep breath that can give that wrestler a moment
of pause. In a way, to see a wrestler pause and unwind is also reassuring
to the coach in the corner. Teach wrestlers to draw in a deep breath
on a three-count, hold it, and exhale on a three count.
Finally, the last part of focus is Step. The acronym
of F-O-C-U-S walks a wrestler through forgetting
the negative, organizing for the moment, concentrating on the movement,
unwinding to take control of the rush of adrenaline, and the step
to be taken at the sound of the whistle. Now it is not enough to
say to a wrestler hit the inside stand-up. Rather the process of
focus should help coaches teach the speed, the force, and the fury
that needs to go into the precise step to be taken at the initial
whistle. In the practice room coaches, can teach focus by going
through a match situation and as the coach talks to his/her wrestlers
about unwinding and getting set he/she should reinforce what kind
of maximum speed and power they are looking for in that step.
Too often coaches see wrestler go through the motions. They might
be repeating that standup for fiftieth time in practices. Their
feet and hands are moving to the right points. Their head position
is fine. But something is lacking their is not the right speed to
that step. F-O-C-U-S, specifically STEP
is what those wrestlers are missing. Every coach wants to see his/her
wrestlers hit that step in a higher gear. By breaking down the word
focus coaches can renew wrestlers attention and achieve higher focus
for the speed, force, and fury of any particular step.
Focus! Coaches will yell this to their wrestlers
often in the up-coming season. If the wrestlers are truly going
to understand what focus means, then they need to learn a process
that can be done quickly in the heat of a match, which will actually
help them achieve focus. Forget, organize, concentrate, unwind,
and step…….when you a hear coach yell focus that is
what they expect their wrestler to do. However, the wrestlers that
separate themselves from the others to become champions, will undoubtedly
learn a higher level of focus.
Written by Ted Witulski-NCEP
[Back to the top]
Wrestling Moves
| Proper stance, movement, penetration,
and lifting technique
- Stance and Movement
- Penetration Step
- Lifting
- Hip Heist
- Back Arch
Takedowns
- Double Leg Takedown
- Finishes from Down on the Mat
- Standing Finishes
- Finished With Opponent's Feet Off the Mat
- Counters to Double Legs
- High Single Leg Takedown
- Finishes When His Leg Is Between Yours
- Finishes When His Leg Is to the Outside of Yours
- Finishes When His Leg Is on the Mat
- Set-Ups
- Set-Ups for High and Low Single Legs
- Sets-Ups From Tie-Ups
- Set-Ups From Fake Shots
- Snatch Single Leg
- Set-Ups for the Snatch Single Leg
TakeDown Counters
- Counters to Singles
- Counters Before or as He Shoots
- Counters to the High Single Leg on the Feet With His Head
to the Inside
- Counters to the High Single Leg on the Feet With His Head
to the Outside
- Counters to the High Single Leg Down on the Mat With His
Head to the Inside
- Counters Down on the Mat With His Head to the Outside
Finishes
- Finishes as a Continuation of the Penetration Step
- Finishes If You Get Stuck on the Mat With Both Knees Down
- Finishes When He is Sprawling Back
- Finishes With Your Head to the Outside, On Your Feet
- Finishes When You Are Down on the Mat and He Is Around
Your Waist
- Counters to High Crotch/Head-to-the-Outside Single
- Underhook Offense
- Finishes to the Underhook
- Over-Underhook
- Finishes With the Over-Underhook
|
Other TakeDowns
- Duckunders
- Fireman's Carry
- Near-Arm Far-Leg
- Set-Ups for the Fireman's Carry or Near-Arm-Far-Leg
- Arm Drags
- Ankle and Knee Picks
- Bear Hugs
- Counters to the Bear Hug
- Front Headlock Down on the Mat
- Finishes From Down on the Mat
- Counter to the Front Headlock Down on the Mat
- Front Headlock from the Feet
- Headlock
- Finishes from the feet When Locked Around His Arm and
Head
- Mat Finishes to a Headlock
- Alternatives to the Headlock If You Don't Get Your Hips
Through
- Counters to the Headlock
Escapes and Reversals
- Stand-Ups
- Finishes to the Stand-Up Once You Are on Your Feet
- Counters to the Stand-Up Finishes
- Sit-Outs
- Hip Heist
- Switches
- Counters to Switches
- Rolls
- Granbys
- Counters to the Granby
Breakdowns, Rides, and Pins
- Breakdowns and Rides
- Pinning Combinations
- Nelson Series
- Finishing the Half Nelson
- Counter to a Half Nelson
- Arm Bars
- Turns Using the Arm Bars
- Arm on His Back
- Finishes With His Arm on His Back
- Near-Wrist Control (One on One)
- Cradles
- Counters to Cradles
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[Back to the top]
Fluids and Hydration -
How important are fluids?
Fluid replacement is probably the most important nutritional concern
for athletes. Approximately 60% of your body weight is water. As you
exercise, fluid is lost through your skin as sweat and through your
lungs when you breathe. If this fluid is not replaced at regular intervals
during exercise, you can become dehydrated.
When you are dehydrated, you have a smaller volume of blood circulating
through your body. Consequently, the amount of blood your heart pumps
with each beat decreases and your exercising muscles do not receive
enough oxygen from your blood. Soon exhaustion sets in and your athletic
performance suffers.
If you have lost as little as 2% of your body weight due to dehydration,
it can adversely affect your athletic performance. For example, if
you are a 150-pound athlete and you lose 3 pounds during a workout,
your performance will start to suffer unless you replace the fluid
you have lost. Proper fluid replacement is the key to preventing dehydration
and reducing the risk of heat injury during training and competition.
How can I prevent dehydration?
The best way to prevent dehydration is to maintain body fluid levels
by drinking plenty of fluids before, during, and after a workout or
race. Often athletes are not aware that they are losing body fluid
or that their performance is being impacted by dehydration.
If you are not sure how much fluid to drink, you can monitor your
hydration using one of these methods.
1.Weight: Weigh yourself before practice and again after practice.
For every pound you lose during the workout you will need to drink
2 cups of fluid to re-hydrate your body.
2.Urine color: Check the color of your urine. If it is a dark gold
color like apple juice, you are dehydrated. If you are well hydrated,
the color of your urine will look like pale lemonade.
Thirst is not an accurate indicator of how much fluid you have lost.
If you wait until you are thirsty to replenish body fluids, then you
are already dehydrated. Most people do not become thirsty until they
have lost more than 2% of their body weight. And if you only drink
enough to quench your thirst, you may still be dehydrated.
Keep a water bottle available when working out and drink as often
as you want, ideally every 15 to 30 minutes. High school and junior
high school athletes can bring a water bottle to school and drink
between classes and during breaks so they show up at workouts hydrated.
What about sport drinks?
Researchers have found that sports drinks containing between 6% and
8% carbohydrate (sugars) are absorbed into the body as rapidly as
water and can provide energy to working muscles that water cannot.
This extra energy can delay fatigue and possibly improve performance,
particularly if the sport lasts longer than 1 hour. If you drink a
sports drink, you can maintain your blood sugar level even when the
sugar stored in your muscles (glycogen) is running low. This allows
your body to continue to produce energy at a high rate.
Drinks containing less than 5% carbohydrate do not provide enough
energy to improve your performance. So, athletes who dilute sports
drink are most likely not getting enough energy from their drink to
maintain a good blood sugar level. Drinking beverages that exceed
a 10% carbohydrate level (most soda pop and some fruit juices) often
have negative side effects such as abdominal cramps, nausea, and diarrhea
and can hurt your performance. What does the sodium in
sports drinks do?
Sodium is an electrolyte needed to help maintain proper fluid balance
in your body. Sodium helps your body absorb and retain more water.
Researchers have found that the fluid from an 8-ounce serving of a
sports drink with 6% carbohydrates (sugars) and about 110 mg of sodium
absorbs into your body faster than plain water.
Some parents, coaches, and athletes are concerned that sports drinks
may contain too much sodium. However, most sports drinks are actually
low in sodium. An 8-ounce serving of Gatorade has sodium content similar
to a cup of 2% milk. Most Americans do get too much sodium, but usually
from eating convenience-type foods, not from sports drinks.
What are guidelines for fluid replacement?
Drink a sports drink containing 6% to 8% carbohydrates to help give
you more energy during intense training and long workouts. To figure
out the percentage of carbohydrate in your drink use the following
formula:
Grams of carbohydrate/serving
-------------------------------------------- X 100 = % of carbohydrate
in drink mL of drink/serving
For example, 240 mL (a 1 cup serving) of a drink with 24 grams of
carbohydrate per serving would have a 10% carbohydrate concentration.
Almost all drinks have the grams of carbohydrate per serving and the
volume in mL somewhere on the container.
Drink a beverage that contains a small amount of sodium and other
electrolytes (like potassium and chloride).
Find a beverage that tastes good; something cold and sweet is easier
to drink.
Drink 10 to 16 ounces of cold fluid about 15 to 30 minutes before
workouts. Drinking a sports drink with a 6% to 8% carbohydrate level
is useful to help build up energy stores in your muscles, particularly
if the workout will last longer than 1 hour. Drink 4 to 8 ounces of
cold fluid during exercise at 10 to 15 minute intervals.
Start drinking early in your workout because you will not feel thirsty
until you have already lost 2% of your body weight; by that time your
performance may have begun to decline.
Avoid carbonated drinks, which can cause gastrointestinal distress
and may decrease the fluid volume.
Avoid beverages containing caffeine and alcohol due to their diuretic
effect.
Practice drinking fluids while you train. If you have never used a
sports drink don't start during a meet or on race day. Use a trial-and-error
approach until you find the drink that works for you. Developed
with and licensed from Clinical Reference Systems, Ltd.
Copyright 1997 Clinical Reference Systems
[Back to the top]
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