[1] Univ Giessen, Dept Psychosomat Med, Psychoneuroimmunol Lab, Berlin, Germany
[2] Univ Giessen, Dept Psychosomat Med, Psychoneuroimmunol Lab, D-35390 Giessen, Germany
[3] Univ Giessen, Dept Psychosomat & Psychotherapy, D-35390 Giessen, Germany
[4] Univ Hosp Hamburg Eppendorf, Dept Dermatol & Venerol, Hamburg, Germany
[5] Charite, Joint Appointment Ctr Internal Med & Dermatol, Psychoneuroimmunol Lab, D-13353 Berlin, Germany
[6] Univ Giessen, Dept Psychosomat Med, Berlin, Germany
[7] Univ Giessen, Dept Psychosomat Med, D-35390 Giessen, Germany