Anaesthetic depth and complications after major surgery: an international, randomised controlled trial.
Short TG, Campbell D, Frampton C, Chan MTV, Myles PS, Corcoran TB, Sessler DI, Mills GH, Cata JP, Painter T, Byrne K, Han R, Chu MHM, McAllister DJ, Leslie K. Anaesthetic depth and complications after major surgery: an international, randomised controlled trial. Lancet. 2019 11 23; 394(10212):1907-1914.