?:authorAffiliation
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[\'University of Duisburg-Essen, Clinic for Psychosomatic Medicine and Psychotherapy, LVR University Hospital Essen, 45147 Essen, Germany.\', \'University of Duisburg-Essen, Clinic for Gastroenterology and Hepatology, University Hospital Essen, 45147 Essen, Germany.\', \'University of Duisburg-Essen, Clinic for Neurology, University Hospital Essen, 45147 Essen, Germany.\']
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