Physical activity and chronic diseases.
Powell
K E
KE
Behavioral Epidemiology and Evaluation Branch, Center for Health Promotion and Education, Atlanta, GA 30333.
Caspersen
C J
CJ
Koplan
J P
JP
Ford
E S
ES
D000203:Activities of Daily Living; D002908:Chronic Disease / Q000517:prevention & control*; D015444:Exercise; D006801:Humans; D010809:Physical Fitness; D013177:Sports