FREIRE, Wilma B.; WATERS, William F.; RIVAS-MARIÑO, Gabriela. Nutritional traffic light system for processed foods: qualitative study of awareness, understanding, attitudes, and practices in Ecuador. Revista Peruana de Medicina Experimental y Salud Pública, [S. l.], v. 34, n. 1, p. 11–8, 2017. DOI: 10.17843/rpmesp.2017.341.2762. Disponível em: https://rpmesp.ins.gob.pe/index.php/rpmesp/article/view/2762.. Acesso em: 2 may. 2024.