1. Department of Dermatology Barcelona Children's Hospital Sant Joan de Déu Barcelona Spain
2. Department of Dermatology Benioff Children Hospital of San Francisco, UCSF San Francisco California USA
3. Department of Pathology, AP‐HP, Hôpital Lariboisière Paris Cité University Paris France
4. Department of Dermatology University Children's Hospital Zurich Zürich Switzerland
5. Department of Dermatology Instituto Argentino de Diagnóstico y Tratamiento Buenos Aires Argentina
6. Center for Genomic Medicine, Parc Taulí Hospital Universitari Institut d'Investigació i Innovació Parc Taulí (I3PT‐CERCA) Sabadell Spain
7. Institute of Medical and Molecular Genetics, INGEMM University Hospital La Paz Madrid Spain
8. Department of Dermatology Radboud University Medical Centre Nijmegen The Netherlands
9. Department of Interventional Radiology Department Hôpital Femme Mère Enfant Lyon France
10. Department of Dermatology Intermountain Medical Center and Primary Children's Hospital Salt Lake City Utah USA
11. Department of Dermatology Albacete University Hospital Albacete Spain
12. Department of Dermatology Ann & Robert H. Lurie Children's Hospital Chicago Illinois USA
13. Department of Dermatology University of Wisconsin Madison Madison Wisconsin USA
14. Department of Dermatology Profesor Juan Garrahan Children's Hospital Buenos Aires Argentina
15. Department of Pediatric Surgery and Urology Copernicus Hospital Gdansk Poland
16. Department of Pathology Hospital Niño Jesús Madrid Spain
17. Department of Pediatric Surgery University Hospital La Paz Madrid Spain