Following publication of our recent article [1], we noticed the following errors:

In the Results section, under the heading 'Confirmation of anti-Rib-P reactivity in 51 samples by other methods', in the first sentence, 39.6% should be 41.2%.

In the same section, the following sentence:

The agreement between the individual methods and the IB was found at 0.57 (P < 0.0001) (ELISA), 0.71 (P < 0.0001), and 0.96 (P < 0.0001) according to the kappa method.

Should read:

The agreement between the individual methods and the IB was found at 0.57 (P < 0.0001) (ELISA), 0.71 (P < 0.0001) (LIA), and 0.96 (P < 0.0001) (EliA(R)) according to the kappa method.

In the results section, under the heading 'Anti-Rib-P reactivity in a systemic lupus erythematosus cohort and controls', in the second sentence, 28% should be 29%.