COSS, J A Prolonged oral administration of penicillin in rheumatoid arthritis. [electronic resource] - Annals of the rheumatic diseases Jun 1947 - 108 p. digital Publication Type: Journal Article ISSN: 0003-4967 Subjects--Topical Terms: Administration, OralArthritisArthritis, Rheumatoid--therapyPenicillins--therapy