Raghunathan K, Layton JB, Ohnuma T, Shaw AD. Observational research using propensity scores. Adv Chronic Kidney Dis. 2016 Nov;23(6):367-72. doi: 10.1053/j.ackd.2016.11.010
Herring WL, Herrmann JW. The single-day surgery scheduling problem: sequential decision-making and threshold-based heuristics. OR spectrum: quantitative approaches in management. 2012 Apr 1;34(2):429-59.
Kovac AL, Pearman MH, Khalil SN, Scuderi PE, Joslyn AF, Prillaman BA, Cox F. Ondansetron prevents postoperative emesis in male outpatients.S3A-379 study group. J Clin Anesth. 1996 Dec;8(8):644-51. doi: 10.1016/s0952-8180(96)00173-0