Affiliation: | 1. Department of Health Policy and Management, UCLA Fielding School of Public Health, Los Angeles, California, USA;2. Division of General Internal Medicine &3. Health Services Research, Department of Medicine, Geffen School of Medicine at UCLA, Los Angeles, California, USA;4. Royal Society of Medicine, Marylebone, London, UK;5. Division of Public Health &6. Community Dentistry, UCLA School of Dentistry, Los Angeles, California, USA |