1. Department of Epidemiology, Colorado School of Public Health, University of Colorado Denver, Anschutz Medical Campus, Aurora, Colorado, USA.
2. Department of Nutritional Sciences, University of Michigan School of Public Health, Ann Arbor, Michigan, USA.
3. Department of Environmental Health Sciences, University of Michigan School of Public Health, Ann Arbor, Michigan, USA.
4. Department of Epidemiology and Biostatistics, Dornsife School of Public Health, Drexel University, Philadelphia, Pennsylvania, USA.
5. Center for Research on Nutrition and Health, National Institute of Public Health, Cuernavaca, Mexico, USA.