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Evaluation of a web-based, pictorial diet history questionnaire
OBJECTIVE: The purpose of this study was to develop and evaluate a pictorial, web-based version of the NCI Diet History Questionnaire (Web-PDHQ). DESIGN: The Web-PDHQ and paper version of the Diet History Questionnaire (Paper-DHQ) were administered four weeks apart with 218 participants randomized t...
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| Hlavní autoři: | , , |
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| Médium: | Artigo |
| Jazyk: | Inglês |
| Vydáno: |
2008
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| Témata: | |
| On-line přístup: | https://ncbi.nlm.nih.gov/pmc/articles/PMC2847393/ https://ncbi.nlm.nih.gov/pubmed/18547450 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1017/S1368980008002668 |
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