LENNARD-JONES, J E Observations on idiopathic proctitis. [electronic resource] - Gut Sep 1962 - 201-6 p. digital Publication Type: Journal Article ISSN: 0017-5749 Standard No.: 10.1136/gut.3.3.201 doi Subjects--Topical Terms: Chronic DiseaseColitisColitis, UlcerativeHumansProctitis