1. Department of Dermatology Ambroise Paré University Hospital Mons Belgium
2. Department of Dermatology Hôpital ErasmeUniversité Libre de Bruxelles Brussels Belgium
3. Center of Human Genetics Hôpital ErasmeUniversité Libre de Bruxelles Brussels Belgium
4. Center of Morphological Pathology Brussels Belgium
5. Department of Oncology Ambroise Paré University Hospital Mons Belgium
6. Clinical Investigation Center 1431 National Institute of Health and Medical Research (INSERM) Paris France
7. Center of Human Genetics University of Franche‐Comté Besançon France