[1] San Raffaele Hosp & Sci Inst IRCCS, Cardiothorac & Vasc Dept, Heart Failure Unit, Via Olgettina 60, I-20132 Milan, Italy
[2] San Raffaele Hosp & Sci Inst IRCCS, Cardiothorac & Vasc Dept, Div Cardiol, Via Olgettina 60, I-20132 Milan, Italy
[3] Sorbonne Univ, Heart Inst, Cardiol Dept, Pitie Salpetriere, Paris, France
[4] Coll Natl Cardiologues Francais, Paris, France
[5] Samara State Med Univ, Dept Diagnost Med & Imaging, Samara, Russia
[6] Harvard Med Sch, Brigham & Womens Hosp, Heart & Vasc Ctr, Boston, MA 02115 USA