Measuring physical activity among adolescents.
Heath
G W
GW
Centers for Disease Control and Prevention, Atlanta, GA.
Pate
R R
RR
Pratt
M
M
D000293:Adolescent; D000294:Adolescent Behavior; D015444:Exercise; D005260:Female; D006306:Health Surveys; D006801:Humans; D008297:Male; D012307:Risk Factors; D014481:United States