TY - BOOK CN - HE 20.6202: CN - RA409 CY - Hyattsville, Md. : CY - Washington, D.C. : DA - [1989] ID - 158877 KW - Physical fitness KW - Exercise KW - Health surveys. KW - Health surveys KW - Data Collection KW - Exertion. KW - Health Surveys. KW - Physical Fitness. N1 - Distributed to depository libraries in microfiche. N1 - "September 1989." PB - U.S. Dept. of Health and Human Services, Public Health Service, Centers for Disease Control, National Center for Health Statistics ; PB - For sale by the Supt. of Docs., U.S. G.P.O., PP - Hyattsville, Md. : PP - Washington, D.C. : PY - [1989] SN - 0840603924 : T1 - Assessing physical fitness and physical activity in population-based surveys. TI - Assessing physical fitness and physical activity in population-based surveys. ER -