[1] Hannover Med Sch, Klin Dermatol Allergol & Venerol, Abt Immundermatol & Expt Allergol, Carl Neuberg Str 1, D-30625 Hannover, Germany
[2] Justus Liebig Univ Giessen, Klin Psychosomat & Psychotherapie, Giessen, Germany
[3] UKGM, Giessen, Germany
[4] Justus Liebig Univ Giessen, Inst Med Psychol, Giessen, Germany