1 Dermatology and Reference Center for Genodermatoses and Rare Skin Diseases (MAGEC), Université de Paris Centre, Institut Imagine, Hôpital Universitaire Necker-Enfants Malades, APHP, Paris, France.
2 Department of Pathology, Necker-Enfants Malades Hospital, APHP, Paris, France.
3 Department of Immunology, APHP, Bichat Hospital, Inserm UMR 1152, Université Paris Diderot Paris 7, Paris, France.