1. From the Department of Neurology (N.K.P., S.M.K.M., S.S., S.E.S., P.S.); Imaging Sciences and Interventional Radiology (D.P.S.); Comprehensive Stroke Care Program (S.E.S., P.S.); and Achutha Menon Centre for Health Science Studies (P.S.S.), Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, India