1 Institute for Health Metrics and Evaluation, Seattle, WA 98121, USA; Center for Global Development, Washington, DC, USA. Electronic address: vgupta@uw.edu.
2 Institute for Health Metrics and Evaluation, Seattle, WA 98121, USA.
3 Council on Foreign Relations, Washington, DC, USA.
4 Center for Global Development, Washington, DC, USA; Division of Global Health Equity, Brigham & Women's Hospital, Boston, MA, USA.