Trends in physical inactivity.
The University of Tennessee, Knoxville.
David R
DR
Bassett
Brigham and Women's Hospital and Harvard Medical School, Cambridge, Mass.
I-Min
IM
Lee
D002149:Energy Intake / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D009043:Motor Activity / Q000502:physiology*; D009765:Obesity / Q000453:epidemiology*