1Division of Pediatric Emergency Medicine, Emory University School of Medicine, Atlanta, Georgia.
2Department of Emergency Medicine, Children's Healthcare of Atlanta, Atlanta, Georgia.
3Medical Research Council/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.
4Swiss Tropical and Public Health Institute, Allschwil, Switzerland.
5University of Basel, Basel, Switzerland.
6Childrens National Hospital, Washington, DC.
7Machine Learning and Optimization Laboratory, EPFL, Lausanne, Switzerland.
8Department of Clinical Research, University of Bern, Bern, Switzerland.