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Autoimmune profile of participants. ANA, antinuclear antibody; Anti SM, anti-Smith antibodies; CCP, cyclic citrullinated peptide; dsDNA, double stranded deoxyribonucleic acid; ESR, erythrocyte sedimentation rate; RF, rheumatoid factor; SSA, Sjögren syndrome-related antigen A; SSB, Sjögren syndrome type B antigen.
