1 Division of Cardiology - Electrophysiology, Department of Medicine, ASST Rhodense, Rho and Garbagnate M.se Hospitals, Milan, Italy. gbotto@asst-rhodense.it.
2 Division of Cardiology - Electrophysiology, Department of Medicine, ASST Rhodense, Rho and Garbagnate M.se Hospitals, Milan, Italy.