1. Master´s and Doctorate Program in Medical and Health Sciences, Faculty of Medicine, National Autonomous University of Mexico, Mexico City, Mexico.
2. Menzies Centre for Health Policy, School of Public Health, The University of Sydney, Sydney, NSW, Australia.
3. Faculty of Economics, National Autonomous University of Mexico, Mexico City, Mexico.
4. Department of Public Health, Faculty of Medicine, National Autonomous University of Mexico, Mexico City, Mexico.
5. Center for Research in Nutrition and Health, National Institute of Public Health, Cuernavaca, Mexico.
6. National Council for Science and Technology (CONACYT), Mexico City, Mexico.