1. Department of Dermatology, Venerology, and Allergology; University Medical Center; Ruprecht-Karls-University; Heidelberg Germany
2. Department of Dermatology; University Medical Center Freiburg; Freiburg Germany
3. Department of Pathology; University Medical Center; Ruprecht-Karls-University; Heidelberg Germany
4. Institute of Human Genetics; University Medical Center; Ruprecht-Karls-University; Heidelberg Germany