1. Departments of Dermatology; Maastricht University Medical Centre; Maastricht The Netherlands
2. GROW Research School for Oncology and Developmental Biology; Maastricht University Medical Centre; Maastricht The Netherlands
3. Clinical Genetics; Maastricht University Medical Centre; Maastricht The Netherlands
4. Department of Dermatology, Venereology and Allergology; University Medical Center Göttingen; Göttingen Germany