Fig. 2From: Association of levels of antibodies against citrullinated cyclic peptides and citrullinated α-enolase in chronic and aggressive periodontitis as a risk factor of Rheumatoid arthritis: a case control study a–e Boxplots of anti-CEP-1 plasma levels in dependence on infection with the periodontal bacteria A. actinomycetemcomitans (a), P. gingivalis (b), P. intermedia (c), T. forsythia (d) and T. denticola (e). The medians of anti-CEP-1 plasma levels between the groups were compared using Mann–Whitney U test.Back to article page