1. Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, 650 Charles E Young Drive South, Los Angeles, CA 90095, USA
2. Institute of Nutrition and Food Technology, University of Chile, Av el Libano 5524, Santiago, Chile
3. Institute of Maternal and Child Research, University of Chile, Santa Rosa 1234, 2° piso, Santiago, Chile
4. Department of Nutrition, Diabetes and Metabolism, School of Medicine, Pontificia Universidad Católica de Chile, Av Libertador Bernardo O'Higgins 340, Santiago, Chile
5. Department of Biostatistics, School of Public Health, and Department of Human Genetics, Gonda Research Center, David Geffen School of Medicine, University of California, Los Angeles, 695 Charles E Young Drive South, Los Angeles, CA 90095, USA
6. Department of Radiology and Biomedical Imaging, University of California, San Francisco, 400 Parnassus Avenue, San Francisco, CA 94117, USA