1. Department of Pediatrics, University of California, San Diego, La Jolla, CA.
2. Joint Doctoral Program in Public Health, San Diego State University/University of California, San Diego, La Jolla, CA.
3. Doctoral Program in Public Health, University of Chile, Santiago, Chile.
4. Institute of Nutrition and Food Technology, University of Chile, Santiago, Chile.
5. Center of Human Growth and Development, University of Michigan, Ann Arbor, MI.