Affiliation: | 1. Department of Dermatology and Reference Center for Genodermatoses and Rare Skin Diseases (MAGEC), Université Paris Descartes – Sorbonne Paris Cité, Institut Imagine, H?pital Universitaire Necker‐Enfants Malades, 149 Rue de Sèvres, 75015 Paris, France;2. Department of General Paediatrics, Robert‐Debré Hospital, Paris, France |