This site is dedicated to publishing information about children's safety and issues pertaining to safety. You can also find membership information, links to other related fields, and publications. (
http://www.nyssf.org/
)
In this site you will see an explanation and demonstration of various tests that can be administered to children, as well as information about exceptions for children with disabilities. (
http://www.presidentschallenge.org/
)
Article from the American Academy of Orthopedic Surgeons (
http://orthoinfo.aaos.org/brochure/thr_report.cfm?Thread_ID=34&topcategory=Sports&searent...
)