Katholische Kliniken Oberhausen, St.Josef Hospital, Klinik für Innere Medizin, Oberhausen 46045, Germany
Medical Office for Gastroenterology and Hepatology, Herne 44623, Germany
Medical Office for Gastroenterology and Hepatology, Dortmund 44263, Germany
Medical Office for Gastroenterology and Hepatology, Berlin 10969, Germany
Center for Interdisciplinary Medicine, Münster 48143, Germany
Medical Office for Gastroenterology and Hepatology, Gieβen 35392, Germany
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