1 Structural and Valvular Center of Excellence, Piedmont Heart Institute, 95 Collier Road, Suite 2065, Atlanta, GA 30305, USA. Electronic address: mvannan2560@gmail.com.
2 Division of Cardiology, A. Cardarelli Hospital, Via A. Cardarelli, 9 - 80131 Naples, Italy. Electronic address: ebossone@hotmail.com.