Surgical adverse events: a systematic review.
Anderson O, Davis R, Hanna GB, et al. Surgical adverse events: a systematic review. Am J Surg. 2013;206(2):253-62. doi:10.1016/j.amjsurg.2012.11.009.
This systematic review estimates that approximately 1 in 20 surgical patients experiences a preventable adverse event, most of which are related to periprocedural care and not errors of surgical technique.

