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 ...
Correspondence to Dr A Hirschmüller, Department of Orthopedics and Trauma Surgery, Medical Center—University of Freiburg, Center for Surgery, Hugstetter Str. 55, Freiburg im Breisgau D-79106, Germany; ...
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