Khan MA, Baird GL, Miller D, Patel A, Tsekhan S, Yaghi S, Puri A, Jayaraman M, Henninger N, Silver B. Endovascular treatment of acute ischemic stroke in nonagenarians compared with younger patients in a multicenter cohort. J Neurointerv Surg. 2017 Aug; 9(8):727-731.