[1] Helios Hosp Krefeld, Dept Dermatol & Venerol, Krefeld, Germany
[2] Univ Med Ctr Hamburg, Dept Dermatol & Venereol, Eppendorf, Germany
[3] Charite Univ Med Berlin, Dept Dermatol Venerol & Allergol, Berlin, Germany
[4] Free Univ Berlin, Berlin, Germany
[5] Humboldt Univ, Berlin, Germany
[6] Hannover Med Sch, Dept Dermatooncol, Hannover, Germany
[7] Univ Hosp Mannheim, Clin Dermatol Venerol & Allergol, Mannheim, Germany
[8] Univ Hosp Wurzburg, Clin Dermatol Venerol & Allergol, Wurzburg, Germany
[9] Catholic Clin Bochum, Clin Dermatol Venerol & Allergol, Bochum, Germany
[10] Univ Hosp Regensburg, Dept Dermatol, Regensburg, Germany
[11] Univ Hosp Heidelberg, Dept Oncol, Heidelberg, Germany
[12] Univ Hosp Schleswig Holstein, Dermatol Clin, Campus Lubeck, Lubeck, Germany
[13] Municipial Clin Karlsruhe, Dermatol Clin, Karlsruhe, Germany
[14] Hosp City Ludwigshafen Rhein, Dept Dermatol, Ludwigshafen, Germany
[15] Univ Hosp Munster, Clin Skin Dis Dermatol & Venerol, Munster, Germany
[16] Tech Univ Dresden, Univ Hosp Carl Gustav Carus, Dept Dermatol, Dresden, Germany
[17] Univ Hosp Halle, Clin Dermatol & Venerol, Halle, Germany
[18] Univ Hosp Bonn, Clin Dermatol & Venerol, Bonn, Germany
[19] Acrom GmbH, Frechen, Germany
[20] Kyowa Kirin Int PLC, Marlow, Bucks, England
[21] Kyowa Kirin GmbH, Dusseldorf, Germany