1. ULB Center of Human Genetics Hôpital Erasme Brussels Belgium
2. Institute for Dental Research and Oral Musculoskeletal Biology and Center for Biochemistry Faculty of Medicine and University Hospital Cologne, University of Cologne Köln Germany
3. Center for Mendelian Genomics, Program in Medical and Population Genetics, Broad Institute of MIT and Harvard Cambridge Massachusetts USA
4. Department of Pediatry, CHU Angers Angers France
5. Department of Pediatric Neurology Hôpital Erasme Brussels Belgium