[1] Tech Univ Munich TUM, Dept Dermatol & Allergy Biederstein, Univ Hosp, Munich, Germany
[2] Univ Geneva, Univ Hosp Geneva, Div Dermatol & Venereol, Geneva, Switzerland
[3] Univ Geneva, Univ Hosp Geneva, Dept Pathol & Immunol, Geneva, Switzerland
[4] Dermatol Practice Potsdam, Potsdam, Germany
[5] Tech Univ Dresden, Carl Gustav Carus Univ Med Ctr, Dept Dermatol, Dresden, Germany
[6] Charite Univ Med Berlin, Dept Dermatol Venereol & Allergol, Berlin, Germany
[7] Gottingen Univ, Univ Med Ctr, Dept Dermatol Venereol & Allergol, Gottingen, Germany
[8] Lower Saxony Inst Occupat Dermatol, Gottingen, Germany