Roukis TS, Samsell B. A new approach to ankle and foot arthrodesis procedures using a living cellular bone matrix: a case series. Clin Res Foot Ankle. 2018 Sep 21;6(3):274. doi: 10.4172/2329-910X.1000274
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