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Trends in physical activity and participation in sports clubs among Icelandic adolescents |
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| Authors: | Eithsdóttir Sigríthur Th Kristjánsson Alfgeir L Sigfúsdóttir Inga D Allegrante John P |
| Affiliation: | Department of Health and Behavior Studies, Teachers College, Columbia University, NY 10027, USA. |
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| 本文献已被 PubMed 等数据库收录！ | |