Walking trends among U.S. adults: The Behavioral Risk Factor Surveillance System, 1987–2000
| Autor: | Simpson, Mary Ellen, Serdula, Mary, Galuska, Deborah A, Gillespie, Cathleen, Donehoo, Ralph, Macera, Carol, Mack, Karin |
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| Zdroj: | In American Journal of Preventive Medicine 2003 25(2):95-100 |
| Databáze: | ScienceDirect |
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