Global physical activity levels: surveillance progress, pitfalls, and prospects
Pedro Curi Hallal
,
Lars Bo Andersen
,
Fiona Bull
,
Pedro Curi Hallal
,
Lars Bo Andersen
,
Fiona Bull
,
Regina Guthold
,
William Haskell
,
Ulf Ekelund
2012
The Lancet
5,649 citations