1. SAMRC/Wits Developmental Pathways for Health Research Unit, Department of Paediatrics and Child Health, School of Clinical Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg-Braamfontein 2050, South Africa
2. Global Health Engineering, LLC, St. Louis, Missouri 63116, United States
3. Department of Archaeology, Biological Anthropology, University of Cambridge, Cambridge CB2 1TN, U.K.
4. Love City Strong, Inc., St. John, US Virgin Islands 00830, United States