[1] Hannover Med Sch, Skin Canc Ctr, Dept Dermatol Allergy & Venereol, D-30449 Hannover, Germany
[2] Graz Univ, Dept Dermatol & Venereol, A-8010 Graz, Austria
[3] Univ Heidelberg, Dept Dermatol, D-6900 Heidelberg, Germany
[4] Univ Tubingen, Dept Dermatol, Sect Dermatol Oncol, D-72074 Tubingen, Germany
[5] Univ Schleswig Holstein, Dept Dermatol Venereol & Allergy, Lubeck, Germany
[6] Univ Heidelberg, Univ Clin Mannheim, Dept Dermatol Venereol & Allergy, D-6900 Heidelberg, Germany
[7] Dermatol Off, Augsburg, Germany
[8] Univ Leipzig, Dept Dermatol Venereol & Allergy, Leipzig, Germany
[9] Univ Munster, Dept Dermatol, D-4400 Munster, Germany
[10] Charite, Dept Dermatol Venereol & Allergy, D-13353 Berlin, Germany
[11] Univ Munich, Dept Dermatol & Allergy, Munich, Germany
[12] Univ Dusseldorf, Dept Dermatol, D-4000 Dusseldorf, Germany