1. From the Center for Public Health Kinetics, New Delhi, India (U.D., P. Dhingra, A.D., S.D., P. Devi, A.C., J.K., O.P.S., S. Sazawal); Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania (R.K., S. Somji, M.B., S.A., K.M.); Harvard T.H. Chan School of Public Health (C.R.S., C.P.D.) and Boston Children’s Hospital (E.L., C.P.D.), Boston; and the World Health Organization, Geneva (R.B., P.A., J.S.).