By Jianu Constantin S   Lange Ove J   Viset Trond   Qvigstad Gunnar   Martinsen Tom C   Fougner Reidun   Kleveland Per M   Fossmark Reidar   Hauso Øyvind   Waldum Helge L   in Scandinavian Journal of Gastroenterology

ISSN:0036-5521|47|1|64-67

Informa Healthcare‎(2012)‎

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