PROCEEDINGS 306,041 Proceedings of the 4th International Symposium of the Japanese Society of Gastroenterology - International Session of yhe 34th Annual Meeting October I2-Tuesday, October 13. 1992 Tochigi Prefectural Culture Center, Utsunomiya City, Tochigi, Japan / President Takashi Harada. - [Tokyo : The Japanese Society of Gastroenterology, 1993], - [16], 203 s. !I., wykr. ; 29 cm (Gastroenterologia Japonica, ISSN 0435-1339 ; vol.28, suppl.5)