Associations between objectively assessed physical activity and indicators of body fatness in 9- to 10-y-old European children: a population-based study from 4 distinct regions in Europe (the European Youth Heart Study).
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U. Ekelund | S. Brage | P. Franks | L. Andersen | K. Froberg | A. Cooper | S. Anderssen | L. Sardinha | C. Riddoch | M. Harro