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A socio-ecological approach to physical activity interventions in childcare: a systematic review

Marjo Anette Kristiina Mehtälä*, Arja Kaarina Sääkslahti, Mari Elina Inkinen and Marita Eija Helena Poskiparta

International Journal of Behavioral Nutrition and Physical Activity 2014, 11:22  doi:10.1186/1479-5868-11-22

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