Fig. 4.
Specific levels of IgG antibodies to EBNA-2(N) and to EBNA-1(C) as defined by ELISA OD450 normalized to whole IgG concentration. (a) Specific OD450 readings of IgG antibodies to EBNA-2(N) in sera from patients with SLE, SS, RA, SSc or MCTD. (b) Specific OD450 readings of IgG antibodies to EBNA-2(N) in sera from patients with secondary SS. (c) Specific OD450 readings of IgG antibodies to EBNA-1(C) in sera from patients with SLE, SS, RA, SSc or MCTD. Median values are indicated by the horizontal bars in the scattergrams.
