Development of a reliable and valid nutritional knowledge questionnaire for urban South African adolescents
| Autor: | Whati, L.H., Senekal, M., Steyn, N.P., Nel, J.H., Lombard, C., Norris, S. |
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| Zdroj: | In Nutrition 2005 21(1):76-85 |
| Databáze: | ScienceDirect |
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