Leisure Time Physical Activity and Sedentary Behavior and Substance Use Among In-School Adolescents in Eight African Countries.
| Autor: | Peltzer, Karl1,2 KPeltzer@hsrc.ac.za |
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| Zdroj: | International Journal of Behavioral Medicine. Dec2010, Vol. 17 Issue 4, p271-278. 8p. 4 Charts. |
| Databáze: | Academic Search Ultimate |
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