References
- Walsh UR, Petr TA: Division I-A Football Injuries on Natural and Artificial Turf; 1987. Mission, KS, National Collegiate Athletic Association, 1988
- Powell JW: Incidence of injury associated with playing surfaces in the National Football League 1980–1985. Athletic Training 1987; 22: 202–206
- Bramwell ST, Requa RK, Garrick JG: High school football injuries: a pilot comparison of playing surfaces. Med Sci Sports 1972; 4: 166–169
Reference
- NCAA News, Oct 5, 1987, p 5
Reference
- Douglas PS, O'Toole ML, Hiller WDB, et al: Cardiac fatigue after prolonged exercise. Circulation 1987; 76: 1206–1213