[1] Dermatologikum Hamburg, Abt Allergol & Berufsdermatol, D-20354 Hamburg, Germany
[2] Univ Klinikum Tubingen, Klin Innere Med Psychosomat Med & Psychotherapie, Tubingen, Germany
[3] Hannover Med Sch, Klin Psychosomat & Psychotherapie, Hannover, Germany
[4] Inst Innovat Rehabil Krankenhausmanagement & Stre, Lielje Grp, Lohne, Germany
[5] Berolina Klin, Abt Psychosomat, Lohne, Germany
[6] Hannover Med Sch, Klin Dermatol Allergol & Venerol, Hannover, Germany