Fig. 2From: Anti-SSA/SSB-negative primary Sjögren’s syndrome showing different clinical phenotypes: a retrospective study of 934 casesDistribution of autoantibodies in patients with primary Sjögren’s syndrome. Data are expressed as n (%). ANA, antinuclear antibodies; anti-CENP-B, anti-centromere protein B; anti-RNP, anti-ribonucleoprotein; AMA-M2, anti-mitochondrial M2 antibody; RF, rheumatoid factorBack to article page