By Homann C.   Christensen E.   Schlichting P.   Philipsen E. K.   Graudal N. A.   Garred P.   in Scandinavian Journal of Gastroenterology

ISSN:0036-5521|38|4|415-420

Informa Healthcare‎(2003)‎

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By Milman N.   Pedersen P.   á Steig T.   Byg K.-E.   Graudal N.   Fenger K.   in Annals of Hematology

ISSN:0939-5555|80|12|737-744

Springer Publishing Company ‎(2001)‎

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