Food frequency questionnaires are useful tools for epidemiologic research in adults. The aim of this study was to measure the reliability of a semiquantitative food frequency questionnaire designed ...
To evaluate the educational influence in the relative validation of a semiquantitative food frequency questionnaire (FFQs) for adults in the city of Viçosa, Brazil. Four 24-h dietary recalls ...
From June 2015 to December 2017, 53,954 questionnaires representing 26,242 patients were collected. Approximately 30% of the questionnaires were completed before the visit on an electronic patient ...
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