[1] Univ Hosp, Clin Dermatol Venereol & Allergol, D-04103 Leipzig, Germany
[2] Vivantes Hosp Friedrichshain, Clin Dermatol & Venereol, D-10249 Berlin, Germany
[3] Univ Hosp, Clin Internal Med Hematol & Oncol, D-04103 Leipzig, Germany
[4] Vivantes Hosp Neukolln, Clin Dermatol & Venereol, D-12351 Berlin, Germany
[5] Univ Hosp, Inst Pathol, D-04103 Leipzig, Germany