(Q35323514)
Statements
1 reference
The reliability and validity of the physical activity questions in the WHO health behaviour in schoolchildren (HBSC) survey: a population study (English)
1 reference
Booth ML
1 reference
Okely AD
1 reference
Chey T
1 reference
Bauman A
1 reference
1 August 2001
1 reference
1 reference
1 reference
1 reference
Identifiers
1 reference