MACHELLA, T E Problems in ulcerative colitis. [electronic resource] - The American journal of medicine Dec 1952 - 760-76 p. digital Publication Type: Journal Article ISSN: 0002-9343 Standard No.: 10.1016/0002-9343(52)90375-6 doi Subjects--Topical Terms: ColitisColitis, UlcerativeHumans