[1] Univ Freiburg, Dept Dermatol, Med Ctr, Freiburg, Germany
[2] Univ Iuliu Hatieganu, Dept Dermatol, Cluj Napoca, Romania
[3] HELIOS St Elisabeth Hosp Oberhausen, Dept Dermatol Venereol & Allergol, Oberhausen, Germany
[4] Ctr Human Genet Freiburg, Freiburg, Germany