1. Fondazione IRCCS SDN, Napoli, Italy
2. Faculty of Medical and Human Sciences, Manchester Academic Health Sciences Centre, University of Manchester, Manchester, United Kingdom
3. Current address: Faculty of Life Sciences, University of Manchester, Manchester, United Kingdom
4. CEINGE Biotecnologie Avanzate, Napoli, Italy
5. Current address: Center for Regenerative Medicine Stefano Ferrari, University of Modena and Reggio Emilia, Modena, Italy
6. Department of Biochemistry, University of Lausanne, Epalinges, Switzerland
7. Department of Human Genetics, Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
8. Institute of Dentistry, University of Helsinki and Oral and Maxillofacial Diseases, Helsinki University Central Hospital, Helsinki, Finland
9. Institute of Genetics and Biophysics CNR, Napoli, Italy
10. Department of Dermatology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
11. Center of Inherited Cutaneous Diseases, University of Milan, Fondazione Osp Maggiore Policlinico Ca' Granda, Milano, Italy
12. Experimental Pathology Laboratory, Cancer Research UK London Research Institute, London, UK