1. Amsterdam University Medical Centers, 1105 AZ Amsterdam, The Netherlands
2. Kit-Royal Tropical Institute, Epidemiology, Center for Applied Spatial Epidemiology (CASE), 1092 AD Amsterdam, The Netherlands
3. Access for Humanity (AFH), Monitoring and Evaluation Unit, Juba 81114, South Sudan
4. Department of Psychiatry, College of Medicine, University of Juba, P.O. Box 82, Juba 81114, South Sudan
5. Global Health Institute, University of Antwerp, Kinsbergen Centrum, Doornstraat 331, 2610 Antwerp, Belgium