Global physical activity levels: surveillance progress, pitfalls, and prospects
The Lancet (British edition), 2012-07, Vol.380 (9838), p.247-257 [Peer Reviewed Journal]Elsevier Ltd ;2012 Elsevier Ltd ;ISSN: 0140-6736 ;EISSN: 1474-547X ;DOI: 10.1016/S0140-6736(12)60646-1 ;PMID: 22818937
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