305,180 SCANDINAVIAN XXIV Scandinavian Conference on Gastroenterology and XV Scandinavian Meeting on Gastrointestinal Endoscopy Aalborg, Demark, 5-8 June, 1991 /ed. by J. Fallingborg [et all. - [Oslo]: Universitetsforlaget, 1991. - 120 s. : il. f 25 cm (Scandinavian Journal of Gastroenterology, ISSN 0085-5928 ; vol. 26 suppl. 183)