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2. 2) Takai Kazuo: Recent trends in determinants of physical activity in children and adolescents, Annual report of the Faculty of Education, Bunkyo University, No.39, pp.43-50, 2005.12(in Japanese) 高井和夫: 子どもの身体活動を支える要因とその方策, 教育学部紀要 文教大学教育学部, 第39 号, pp.43-50, 2005.12
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