1. Department of Preventive Medicine, Division of Environmental Health, University of Southern California, Los Angeles, CA
2. Department of Public Health, California State University, Los Angeles, CA
3. Sonoma Technology, Inc., Petaluma, CA
4. Department of Pediatrics, University of Southern California, Los Angeles, CA
5. Department of Preventive Medicine, Diabetes and Obesity Research Institute, University of Southern California, Los Angeles, CA
6. Department of Physiology and Biophysics, University of Southern California, Los Angeles, CA