1. Harvard T.H. Chan School of Public Health Department of Social and Behavioral Sciences, , Boston, MA 02115, United States
2. Harvard T.H. Chan School of Public Health Department of Epidemiology, , Boston, MA 02115, United States
3. University of Toronto Postgraduate Medical Education, , Toronto, Ontario M5R 0A3, Canada
4. Massachusetts Institute of Technology Department of Urban Studies and Planning, , Cambridge, MA 02139, United States
5. Harvard T.H. Chan School of Public Health Department of Nutrition, , Boston, MA 02115, United States