TY  - GEN
AU  - Welk, Gregory J. 
TI  - Physical activity assessments for health - related research
SN  - 0736037489
U1  - 612.044 
PY  - 2002///
CY  - Champaign
PB  - Human kinetics
KW  - Health care
KW  - Research design
KW  - Physical fitness
ER  -