[Reproducibility and relative validity of the Food Frequency Questionnaire used in the ELSA-Brasil].
Molina Mdel C, Benseñor IM, Cardoso Lde O, Velasquez-Melendez G, Drehmer M, Pereira TS, Faria CP, Melere C, Manato L, Gomes AL, Fonseca Mde J, Sichieri R.
Molina Mdel C, et al.
Cad Saude Publica. 2013 Feb;29(2):379-89.
Cad Saude Publica. 2013.
PMID: 23459823
Free article.
Portuguese.