By Rudolph Hans Ulrich   Post Stefan   Schlüüter Michael   Seitz Uwe   Soehendra Nib   Käähler Georg   in Scandinavian Journal of Gastroenterology

ISSN:0036-5521|46|5|583-590

Informa Healthcare‎(2011)‎

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By Bernhardt Joern   Gerber Bernd   Schober Hans-Christof   Kähler Georg   Ludwig Kaja   in International Journal of Colorectal Disease

ISSN:0179-1958|23|5|547-550

Springer Publishing Company ‎(2008)‎

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