Cite
HARVARD Citation
Ekelund, U. et al. (2011). What proportion of youth are physically active? Measurement issues, levels and recent time trends. British journal of sports medicine. 45 (11), pp. 859-865. [Online].
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Ekelund, U. et al. (2011). What proportion of youth are physically active? Measurement issues, levels and recent time trends. British journal of sports medicine. 45 (11), pp. 859-865. [Online].