1. Department of Internal Medicine, Faculty of Medicine, University of Goma, Goma, The Democratic Republic of the Congo
2. Department of Maternal and Child Health, Higher Institute of Medical Techniques of Lubumbashi, Lubumbashi, The Democratic Republic of the Congo
3. Department of Pediatrics, University of Lubumbashi, Lubumbashi, The Democratic Republic of the Congo
4. Department of Internal Medicine, University of Kisangani, Kisangani, The Democratic Republic of the Congo