Adverse drug events in surgical patients: an observational multicentre study.
de Boer M, Boeker EB, Ramrattan MA, et al. Adverse drug events in surgical patients: an observational multicentre study. Int J Clin Pharm. 2013;35(5):744-52. doi:10.1007/s11096-013-9797-5.
This study found a remarkably high incidence of preventable medication errors in surgical patients, despite universal use of computerized provider order entry.