605,696 CONCEPTS Concepts and controversy in gastroenterology : Proceedings from a satellite symposium Sao Paulo, Brazil 10 September 1986 / ed. by James Freston, Roy Pounder ; ass. ed. David Caldwell. - [Oslo] : Norwegian Univ. Press, [1987]. - 43, [5] s. : il., wykr. ; 25 cm (Scandinavian Journal of Gastroenterology, ISSN 0085-5928 ; vol. 22, suppl. 132)