Fan W-Y, Fleming A, Robertson G, Uji A, Van Hemert J, Singer M, Sagong M, Ip M, Sadda SR. Fractal analysis of retinal vasculature in normal subjects on ultra-wide field fluorescein angiography. Int J Ophtalmol. 2020 Jul 18;13(7):1109-14. doi: 10.18240/ijo.2020.07.15
Wion RK, Hill NL, DePasquale N, Mogle J, Whitaker EB. The relationship between subjective cognitive impairment and activity participation: a systematic review. Act Adapt Aging. 2020;44(3):225-45. doi: 10.1080/01924788.2019.1651188
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