1. Peter C. Rockers is an assistant professor of global health in the Department of Global Health at the Boston University School of Public Health, in Massachusetts.
2. Veronika J. Wirtz ( ) is an associate professor in the Department of Global Health and Center for Global Health and Development, Boston University School of Public Health.
3. Chukwuemeka A. Umeh is the director and principal research scientist at Lois & Bryant LLC, in Winchester, California. He was a research assistant in the Department of Global Health, Boston University School of Public Health, at the time this work was completed.
4. Preethi M. Swamy was a research assistant at the Boston University School of Medicine at the time this work was completed.
5. Richard O. Laing is a professor of international health in the Department of Global Health at the Boston University School of Public Health.