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- [3] THE CONCEPT OF SERONEGATIVE RHEUMATOID-ARTHRITIS BRITISH JOURNAL OF RHEUMATOLOGY, 1986, 25 : EC2 - EC2
- [5] THE CASE AGAINST SERONEGATIVE RHEUMATOID-ARTHRITIS AMERICAN JOURNAL OF MEDICINE, 1981, 70 (05): : 992 - 994
- [10] SERONEGATIVE AND SEROPOSITIVE RHEUMATOID-ARTHRITIS - SIMILAR DISEASES BRITISH JOURNAL OF RHEUMATOLOGY, 1987, 26 (03): : 172 - 180