Harlan Krumholz (2023) “Comparative Analysis of Transcatheter Aortic Valve Implantation Versus Surgical Aortic Valve Replacement in Frail Elderly Patients: A Multicenter Cohort Study”, Pacific Journal of Cardiovascular Innovations, 1(1), pp. 12–19. doi:10.70818/pjci.v01i01.050.