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The safety of addition of nitrous oxide to general anaesthesia in at-risk patients having major non-cardiac surgery (ENIGMA-II): a randomised, single-blind trial.
Myles PS, Leslie K, Chan MT, Forbes A, Peyton PJ, Paech MJ, Beattie WS, Sessler DI, Devereaux PJ, Silbert B, Schricker T, Wallace S; ANZCA Trials Group for the ENIGMA-II investigators. Myles PS, et al. Lancet. 2014 Oct 18;384(9952):1446-54. doi: 10.1016/S0140-6736(14)60893-X. Lancet. 2014. PMID: 25142708 Clinical Trial.