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A comprehensive physical activity promotion programme at elementary school: the effects on physical activity physical fitness and psychosocial correlates of physical activity
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Effectiveness of a two-year health-related physical education intervention in elementary schools
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Promotie van sport en beweging in de lagere school
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(2006) -
Increasing children's physical activity levels during recess periods in elementary schools: the effects of providing game equipment
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Physical fitness, physical activity, and self-reported back and neck pain in elementary schoolchildren