Relative validity of fruit and vegetable intake estimated by the food frequency questionnaire used in the Danish National Birth Cohort

Author: Mikkelsen Tina   Olsen Sjurdur   Rasmussen Salka   Osler Merete  

Publisher: Informa Healthcare

ISSN: 1403-4948

Source: Scandinavian Journal of Public Health, Vol.35, Iss.2, 2007-01, pp. : 172-179

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