By Bretthauer M.   Skovlund E.   Grotmol T.   Thiis-Evensen E.   Gondal G.   Huppertz-Hauss G.   Efskind P.   Hofstad B.   Holmsen S. Thorp   Eide T. J.   Hoff G.   in Scandinavian Journal of Gastroenterology

ISSN:0036-5521|38|12|1268-1274

Informa Healthcare‎(2003)‎

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