1. Paediatric Dermatology Great Ormond Street Hospital for Children London U.K.
2. Genetics and Genomic Medicine UCL Institute of Child Health London U.K.
3. Department of Dermatology and Reference Centre for Genodermatoses and Rare Skin Diseases (MAGEC), Université Paris Descartes – Sorbonne Paris Cité Institut Imagine Paris France
4. Department of Pathology Hôpital Universitaire Necker‐Enfants Malades APHP Paris France
5. Department of Dermatology Hospital Infantil del Niño Jesús Madrid Spain
6. Department of Dermatology and Reference Centre for Rare Skin Diseases Dijon University Hospital Dijon France
7. GAD Genetics of Anomalies of Development University of Bourgogne Dijon France
8. Dermatology Unit Bambino Gesù Children's Hospital Rome Italy