Di Scala, C., S. Scavo Gallagher, and S.E. Schneps. (1997). Causes and outcomes of pediatric injuries occurring at school, Journal of School Health, 67, 384-9.
FACTS About Certified Athletic Trainers and The National Athletic Trainers' Association Retrieved http://www.vata.us/aboutvata/FactsaboutATCS.pdf
International Federation of Sports Medicine, Excessive physical training in children and adolescents, (1991). Clinical Journal of Sports Medicine, 1, 262-4.
Gerberich, Susan Goodwin, et al., (1983). Concussion incidences and severity in secondary school varsity football players, American Journal of Public Health, 73, 1370-5.