Validation of a Method for the Estimation of Food Portion Size
In the context of the planning phase of a large cohort study on dietary habits and cancer, we have developed a food frequency questionnaire on usual food intake, which includes a set of pictures to estimate the portion size of 23 different dishes. The validity of the estimation of portion size of re...
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| Main Authors: | , , , , , , |
|---|---|
| 格式: | Artigo |
| 語言: | 英语 |
| 出版: |
1992
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| 在線閱讀: | https://doi.org/10.1097/00001648-199207000-00015 |
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