OESO is a scientific Organization created in 1978 for a multi-disciplinary learned activity devoted to esophagology. ➔ An international assembly of world’s leading specialists from 19 disciplines, all interested in one, single organ: the esophagus ➔ 14,000 corresponding members from 85 countries ➔ A unique, long standing joint endeavor, continuously renewed and without equal ➔ A world reference in the domain of esophagology ➔ A comprehensive book on ONE, single subject, representing a further step in the OESO evolutionary Encyclopedia of Esophagology, released following each Conference ➔ Organization and federation of multi-disciplinary multi-center studies ➔ Lending of modern technology to provide high level, regularly updated CME