Brett W Sperry1, Wael A Jaber2. 1. Saint Luke's Mid America Heart Institute, 4401 Wornall Rd., Kansas City, MO, 64111, USA. 2. Cleveland Clinic Lerner College of Medicine, Fuad Jubran Endowed Chair in Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic, 9500 Euclid Ave. J1-5, Cleveland, OH, 44195, USA. JABERW@ccf.org.