[1] Westchester Med Ctr, Dept Cardiol, Valhalla, NY USA
[2] New York Med Coll, Valhalla, NY USA
[3] Montefiore Med Ctr, Albert Einstein Coll Med, Dept Med, Bronx, NY USA
[4] Icahn Sch Med, Dept Cardiol, Div Adv Heart Failure & Transplant, New York, NY USA
[5] Univ Calif Los Angeles, Dept Cardiol, Med Ctr, Los Angeles, CA USA
[6] Ahmanson UCLA Cardiomyopathy Ctr, Ronald Reagan UCLA Med Ctr, 10833 LeConte Ave,Room A2-237 CHS, Los Angeles, CA 90095 USA