?:authorAffiliation
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[\'University of Duisburg-Essen, Clinic for Psychosomatic Medicine and Psychotherapy, LVR Hospital Essen, 45147 Essen, Germany.\', \'University of Duisburg-Essen, Center of Clinical Epidemiology, Institute of Medical Informatics, Biometry and Epidemiology, University Hospital of Essen, 45147 Essen, Germany.\', \'Medical University Hospital Tübingen, Department of Psychosomatic Medicine and Psychotherapy, University of Tübingen, 72074 Tübingen, Germany.\']
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