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Social support, physical activity and sedentary behavior among 6th-grade girls: a cross-sectional study
Andrew E Springer, Steven H Kelder, Deanna M HoelscherVolume:
3
Language:
english
DOI:
10.1186/1479-5868-3-8
Date:
December, 2006
File:
PDF, 270 KB
english, 2006