1. Department of Dermato‐Cancerology CHU Nantes‐Hôtel‐Dieu CRCINA Inserm 1232, CIC 1413 University of Nantes Nantes France
2. Bio Informatics/statistics University of Paris Sud Paris France
3. Vichy Laboratoire Internationale Levallois‐Perret France
4. Private Practice Paris France
5. EMMA Fontenay‐sous‐Bois France
6. Santé Publique CHU Necker‐Enfants malades Paris France