1. Medical School, University of Liège, Liège, Belgium
2. Department of Nephrology, Grand Hôpital de Charleroi, Gilly, Belgium
3. Department of Hematology, Grand Hôpital de Charleroi, Gilly, Belgium
4. Department of Radiology, Grand Hôpital de Charleroi, Gilly, Belgium
5. Centre for Human Genetics, Institute of Pathology and Genetics, Gosselies, Belgium.