1. Department of Surgery, University Hospital, University of Lubumbashi, P.O. Box 1825, Lubumbashi, Democratic Republic of the Congo
2. Center for Human Genetics, Faculty of Medicine, University of Lubumbashi, P.O. Box 1825, Lubumbashi, Democratic Republic of the Congo
3. Department of Pediatrics, University Hospital, University of Lubumbashi, P.O. Box 1825, Lubumbashi, Democratic Republic of the Congo
4. Department of Pediatrics, University Hospital, University of Kinshasa, P.O. Box 123, Kin XI, Kinshasa, Democratic Republic of the Congo
5. Center for Human Genetics, University Hospital, KU Leuven, Campus Gasthuisberg, Herestraat 49, P.O. Box 602, 3000 Leuven, Belgium
6. Unit of Toxicology and Environment, School of Public Health, University Hospital, University of Lubumbashi, P.O. Box 1825, Lubumbashi, Democratic Republic of the Congo
7. Department of Gynecology, University Hospital, University of Lubumbashi, P.O. Box 1825, Lubumbashi, Democratic Republic of the Congo