SIVAK MICHAEL V. 312,493 INTERNATIONAL 10th International Symposium on Endoscopic Ultrasonography / chairman Michael V. Sivak . - /St. Louis : by Mosby-Year Book, Inc._7, 1996. - 64 s. : il. ; 28 cm (Gastrointestinal Endoscopy, ISSN 0016-5107 ; vol.43, nr 2 pt. 2 suppl.)