(Q34230350)
Statements
1 reference
The epidemiology of walking for physical activity in the United States (English)
1 reference
Ross C Brownson
1 reference
Amy A Eyler
1 reference
Stephen J Bacak
1 reference
Robyn A Housemann
1 reference
1 September 2003
1 reference
1 reference
35
1 reference
1529-1536
1 reference
Identifiers
1 reference
1 reference