Julian Urrutia1, Thalia Porteny2, Norman Daniels3. 1. Interfaculty Initiative in Health Policy, Harvard University, Cambridge, MA 02138, USA jurrutia@fas.harvard.edu. 2. Interfaculty Initiative in Health Policy, Harvard University, Cambridge, MA 02138, USA. 3. Department of Global Health and Population, Harvard T H Chan School of Public Health, Boston, MA, USA.