Affiliation: | Department of Transplant Surgery, University of G?ttingen, Germany, DE Department of Medicine, Division of Gastroenterology and Endocrinology, University of G?ttingen, Robert-Koch Str. 40, D-37075 G?ttingen, Germany e-mail: hschwoer@med.uni-goettingen.de Tel.: +49-551-396353; Fax: +49-551-398596, DE
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