Yoshikawa H, Kiuchi T, Saida T, et al. Randomised, double-blind, placebo-controlled study of tacrolimus in myasthenia gravis (J Neurol Neurosurg Psychiatry 2011;82:970–7). The authors of this paper have noticed an error in table 4. In the Height (cm) row, on the second line, <162.15 should be ≥162.15.