ABSTRACT 297,588 Abstract book world congresses : Gastroenterology OMGE 8th congress, Digestive Endoscopy OMED 6th congress, Colo-Proctology 3rd congress Sao Paulo, Brazil, September 7-12, 1986 / the congresses are org. on behalf of Federacao Brasileira de Gastroenterologia [et al.] ; supported by an educational grant from Smith Kline and French International to the World Congresses of Gastroenterology. - New York : Publ by Plenum Publ. Corporation, 1986. - 544 s. : il., wykr. ; 28 cm (Digestive Diseases and Sciences, ISSN 0163-2116; vol. 31, Nr 10 ; suppl.)