Gladman, D D Reliability of measurements of active and damaged joints in psoriatic arthritis. [electronic resource] - The Journal of rheumatology Jan 1990 - 62-4 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 0315-162X Subjects--Topical Terms: Arthritis, Psoriatic--diagnostic imagingArthrographyHumansJoints--pathologyObserver VariationReproducibility of ResultsRheumatology--standards