[1] Donau Univ Krems, Dept Psychotherapie & Biopsychosoziale Gesundheit, Krems An Der Donau, Austria
[2] Charite, Dept Psychosomat Med, D-13353 Berlin, Germany
[3] Karl Landsteiner Privatuniv Krems, Krems An Der Donau, Austria
[4] Univ Klinikum Regensburg, Dept Psychosomat Med, Regensburg, Germany