Relative validity of a food frequency questionnaire to identify dietary patterns in an adult Mexican population.
Denova-Guti?rrez E, Tucker KL, Salmer?n J, Flores M, Barquera S. Relative validity of a food frequency questionnaire to identify dietary patterns in an adult Mexican population. Salud Publica Mex. 2016 Nov-Dec; 58(6):608-616.