Fig. 3From: Antibodies against citrullinated proteins in relation to periodontitis with or without rheumatoid arthritis: a cross-sectional studyDistribution of serum ACPA concentration in four groups of subjects (in ascending order). There is an increase in the serum ACPA concentration in which the RAPd group had the highest concentration followed by RA group, Pd group and healthy control group (RAPd > RA > Pd > control)Back to article page