By Hirche T. O.   Rußler J.   Schröder O.   Schuessler G.   Kappeser P.   Caspary W. F.   Dietrich C. F.   in Scandinavian Journal of Gastroenterology

ISSN:0036-5521|37|10|1178-1183

Informa Healthcare‎(2002)‎

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By Dietrich C F   Schuessler G   Trojan J   Fellbaum C   Ignee A   in British Journal of Radiology

ISSN:0007-1285|78|932|704-707

British Institute of Radiology‎(2005)‎

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