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An assessment of self-reported physical activity instruments in young people for population surveillance: Project ALPHA
Stuart JH Biddle, Trish Gorely, Natalie Pearson, Fiona C BullVolume:
8
Language:
english
DOI:
10.1186/1479-5868-8-1
Date:
December, 2011
File:
PDF, 239 KB
english, 2011