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Adult
2
Anti-Ro antibodies
2
Antibodies, Anti-Idiotypic
2
Antibodies, Antinuclear
Arthritis, Rheumatoid
2
Clinical significance
2
Cohort Studies
2
Cross-Sectional Studies
2
Disease severity
2
Female
2
HLA DR antigen
2
Humans
2
La antibody
2
Male
Middle Aged
Rheumatoid arthritis
2
Ro antibody
2
Severity of Illness Index
2
adult
2
antibody detection
2
antimalarial agent
2
antinuclear antibody
2
article
2
azathioprine
2
chlorambucil
2
controlled study
2
corticosteroid
2
cryoglobulinemia
2
cyclophosphamide
2
demography
2
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1
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2