[Argentine Congress of Gastroenterologic Endoscopy. Cordoba, 25-30 September 1999. Abstracts]. [electronic resource] - Acta gastroenterologica Latinoamericana 1999 - 156-242 p. digital Publication Type: Congress; Overall ISSN: 0300-9033 Subjects--Topical Terms: Endoscopy, GastrointestinalHumans