1. Division of Chronic Disease and Injury Prevention, Los Angeles County Department of Public Health, Los Angeles, California
2. Research Group on Statistics, Econometrics and Health, University of Girona, Girona, Spain
3. Department of Health Policy and Management, Fielding School of Public Health, University of California, Los Angeles
4. Department of Family Medicine, David Geffen School of Medicine, University of California, Los Angeles
5. Population Health Program, Clinical and Translational Science Institute, University of California, Los Angeles