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Seasonal variation in objectively assessed physical activity among children and adolescents in Norway: a cross-sectional study
Elin Kolle, Jostein Steene-Johannessen, Lars B Andersen, Sigmund A AnderssenVolume:
6
Language:
english
DOI:
10.1186/1479-5868-6-36
Date:
December, 2009
File:
PDF, 855 KB
english, 2009