[1] Res Ctr Julich, Inst Neurosci & Med Brain & Behav INM 7, Julich, Germany
[2] Rhein Westfal TH Aachen, Uniklin, Aachen, Germany
[3] RoMed Hosp Rosenheim, Rosenheim, Germany
[4] Heinrich Heine Univ Dusseldorf, Clin Inst Psychosomat Med & Psychotherapy, Dusseldorf, Germany