Validity of a Food Frequency Questionnaire in Assessing Nutrient Intakes of Low-Income Pregnant Women.
| Autor: | Wei, Esther K.1 ewei@hsph.harvard.edu, Gardner, Jane2, Field, Alison E.3,4, Rosner, Bernard A.3,5, Colditz, Graham A.1,3,4, Suitor, Carol W.6 |
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| Zdroj: | Maternal & Child Health Journal. Dec1999, Vol. 3 Issue 4, p241. 6p. |
| Databáze: | Academic Search Ultimate |
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