POLLARD, H M Diseases of the gastrointestinal tract. [electronic resource] - Annual review of medicine 1958 - 47-68 p. digital Publication Type: Journal Article ISSN: 0066-4219 Standard No.: 10.1146/annurev.me.09.020158.000403 doi Subjects--Topical Terms: Gastrointestinal DiseasesHumans