1. Department of Dermatology; Centre National de Référence des Maladies Génétiques à Expression Cutanée (MAGEC); Hôpital Universitaire Necker-Enfants Malades, APHP; Université Paris Descartes - Sorbonne Paris Cité; Institut Imagine; Paris France
2. Department of Pathology; Hôpital Universitaire Necker-Enfants Malades, APHP; Paris France
3. Department of Genetics; Laboratoire Commun de Biologie et Génétique Moléculaires (LCBGM) and Department of Mass Spectrometry; ERL INSERM U1057; UMR 7203; Hôpital Saint-Antoine, APHP; Paris France
4. Department of Dermatology; CHU Caen; Caen France
5. Centre de Biologie et de Pathologie Est; CHU Lyon; Lyon France
6. Department of Metabolomics and Peptidomics (PM ); Hôpital Saint-Antoine, APHP; Paris France
7. Laboratory of Mass Spectrometry; UPMC; Paris VI; ERL Inserm U1157; UMR 7203 LBM; Hôpital Saint-Antoine, APHP; Paris France
8. Department of Genetics; Hôpital Universitaire Necker-Enfants Malades, APHP; Paris France
9. Unité INSERM U1163; Université Paris Descartes - Sorbonne Paris Cité; Institut Imagine; Paris France