(Q33990685)
Statements
1 reference
Reliability and validity issues concerning large-scale surveillance of physical activity (English)
1 reference
Washburn RA
1 reference
Heath GW
1 reference
Jackson AW
1 reference
1 June 2000
1 reference
1 reference
71
1 reference
2 Suppl
1 reference
S104-13
1 reference
Identifiers
1 reference