A Clinical Investigation authored by Naguib et al. published in the November 1998 issue of Anesthesiology (1998; 89:1116-24) contained an error. The first sentence in the Results in the Abstract should read as follows:

The calculated ED50values and their 95% confidence intervals were 111 (107-115) and 26.2 (25.8-26.5)[micro sign]g/kg for rocuronium and cisatracurium, respectively. The authors regret this error.