Ankle and knee injuries at West Virginia University before and after astro turf.
D000293:Adolescent; D000328:Adult; D016512:Ankle Injuries; D001265:Athletic Injuries / Q000453:epidemiology*; D006801:Humans; D007718:Knee Injuries / Q000453:epidemiology*; D008297:Male; D006109:Poaceae; D014903:West Virginia