Paalanen, Kirsi Prevalence of calcium pyrophosphate deposition disease in a cohort of patients diagnosed with seronegative rheumatoid arthritis. [electronic resource] - Clinical and experimental rheumatology - 99-106 p. digital Publication Type: Journal Article ISSN: 0392-856X Subjects--Topical Terms: AgedArthritis, Rheumatoid--diagnosisChondrocalcinosis--diagnosisDiagnosis, DifferentialFemaleHumansMalePrevalenceSynovial Fluid--chemistry