Thourani VH, Jensen HA, Babaliaros V, Suri R, Vemulapalli S, Dai D, Brennan JM, Rumsfeld J, Edwards F, Tuzcu EM, Svensson L, Szeto WY, Herrmann H, Kirtane AJ, Kodali S, Cohen DJ, Lerakis S, Devireddy C, Sarin E, Carroll J, Holmes D, Grover FL, Williams M, Maniar H, Shahian D, Mack M. Transapical and Transaortic Transcatheter Aortic Valve Replacement in the United States. Ann Thorac Surg. 2015 Nov; 100(5):1718-26; discussion 1726-7.