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. 2009 May 26;11(3):R77. doi: 10.1186/ar2708

Figure 1.

Figure 1

Epstein-Barr virus load in peripheral blood mononuclear cells in the cross-sectional study. Epstein-Barr virus (EBV) load distribution in control individuals (n = 15), spondylarthropathy (SpA) patients (n = 23), rheumatoid arthritis (RA) patients receiving methotrexate (MTX) (n = 18) and RA patients not receiving disease-modifying anti-rheumatic drug therapy (n = 26). Mean values of EBV viral load are represented by a black line. *Kruskall-Wallis test. PBMC, peripheral blood mononuclear cell.