A cluster randomized trial of a multi-level intervention, delivered by service staff, to increase physical activity of children attending center-based childcare
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2016 ◽
Vol 43
(5)
◽
pp. 568-576
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2016 ◽
Vol 106
(6)
◽
pp. 1092-1098
◽
2012 ◽
Vol 6
(1)
◽
pp. 11-21
◽