A controlled trial of a school-based environmental intervention to improve physical activity in Dutch children: JUMP-in, kids in motion von Jurg, Merlin E., Kremers, Stef P.J., Candel, Math J.J.M., Van der Wal, Marcel F., Meij, Judith S.B. De

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Using health promotion outcomes in formative evaluation studies to predict success factors in interventions: an application to an intervention for promoting physical activity in Du... von Jurg, Merlin E., De Meij, Judith S. B., Van der Wal, Marcel F., Koelen, Maria A.

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Awareness and habit: important factors in physical activity in children von Kremers, Stef P.J, Dijkman, Marieke A.M, de Meij, Judith S.B, Jurg, Merlin E, Brug, Johannes

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