1 Department of Dermatology and Reference Center for Genodermatoses and Rare Skin Diseases (MAGEC), Université Paris Descartes - Sorbonne Paris Cité, Institut Imagine, Hôpital Universitaire Necker-Enfants Malades, 149 Rue de Sèvres, 75015, Paris, France. olivia.boccara@aphp.fr.
2 Department of Dermatology and Reference Center for Genodermatoses and Rare Skin Diseases (MAGEC), Université Paris Descartes - Sorbonne Paris Cité, Institut Imagine, Hôpital Universitaire Necker-Enfants Malades, 149 Rue de Sèvres, 75015, Paris, France.
3 Department of General Paediatrics, Robert-Debré Hospital, Paris, France.