[1] Univ Med Ctr Gottingen, Dept Dermatol Venereol & Allergol, Gottingen, Germany
[2] Univ Duisburg Essen, Dept Dermatol, Essen, Germany
[3] Univ Munich, Dept Dermatol & Allergol, Munich, Germany
[4] Med Univ Vienna, Dept Dermatol, Vienna, Austria
[5] Univ Med Ctr Mainz, Dept Dermatol, Mainz, Germany
[6] Med Univ Graz, Dept Dermatol, Graz, Austria
[7] Univ Klinikum Schleswig Holstein, Dept Dermatol & Venerol, Campus Kiel, Germany
[8] Univ Heidelberg Hosp, Dept Dermatol, Heidelberg, Germany
[9] Univ Heidelberg Hosp, Natl Ctr Tumor Dis NCT, Heidelberg, Germany
[10] Hannover Med Sch, Skin Canc Ctr, Dept Dermatol & Allergy, Hannover, Germany
[11] Univ Wurzburg, Dept Dermatol, Wurzburg, Germany