1. Department of Sociomedical Sciences, Mailman School of Public Health, Columbia University and Mount Sinai School of Medicine, New York, NY, USA
2. Department of Family Medicine, Warren Alpert Medical School at Brown University, Providence, RI, USA
3. Department of Society, Human Development and Health, Harvard School of Public Health and Dana-Farber Cancer Institute, Boston, MA, USA
4. Harvard Medical School and Dana-Farber Cancer Institute, Boston, MA