There was an error in an article published in the March issue of the journal (Khan S, Alvi A, Holding S, et al. The clinical significance of antinucleolar antibodies. J Clin Pathol 2008;61:283–6.) On page 283 the sentence “…ribonuclease multidrug resistance protein/ribonuclease P and 10 associated proteins…” should read “…RNase MRP (Th or 7-2 RNA) and RNase P (To or 8-2 RNA)…”.