Kovalskys I, Fisberg M, G?mez G, Rigotti A, Cort?s LY, Y?pez MC, Pareja RG, Herrera-Cuenca M, Zimberg IZ, Tucker KL, Koletzko B, Pratt M. Standardization of the Food Composition Database Used in the Latin American Nutrition and Health Study (ELANS). Nutrients. 2015 09 16; 7(9):7914-24.