By Granlund Atle Van Beelen   Beisvag Vidar   Torp Sverre H.   Flatberg Arnar   Kleveland Per Martin   Østvik Ann Elisabeth   Waldum Helge L.   Sandvik Arne K.   in Scandinavian Journal of Gastroenterology

ISSN:0036-5521|46|11|1316-1323

Informa Healthcare‎(2011)‎

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