?:authorAffiliation
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[\'Department of Gastroenterology, Gastrointestinal Oncology and Endocrinology, University Medical Center Göttingen, Göttingen, Germany. Electronic address: elisabeth.hessmann@med.uni-goettingen.de.\', \'Medical Clinic and Policlinic II, Klinikum rechts der Isar, Technische Universität München, Munich, Germany. Electronic address: guenter.schneider@tum.de.\']
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