[1] Christian Albrechts Univ Kiel, Dermatol, Kiel, Germany
[2] Univ Klinikum Essen, Dermatolol, Essen, Germany
[3] Univ Hautklin, Tubingen, Germany
[4] Med Hsch, Dermatol, Hannover, Germany
[5] Univ Hautklin, Augsburg, Germany
[6] Elbekliniken, Dermatol, Buxtehude, Germany