[1] Univ Louisville, Dept Cardiovasc Med, Louisville, KY 40292 USA
[2] Univ Utah, Dept Cardiovasc Med, Salt Lake City, UT USA
[3] Univ Nebraska, Dept Cardiovasc Med, Omaha, NE 68182 USA
[4] Montefiore Med Ctr, Dept Cardiovasc Med, New York, NY USA
[5] Univ Utah, Dept Cardiothorac Surg, Salt Lake City, UT USA
[6] Univ Louisville, Dept Cardiovasc Surg, Louisville, KY 40292 USA
[7] Univ Penn, Dept Cardiovasc Surg, Philadelphia, PA 19104 USA
[8] Montefiore, Dept Cardiovasc Surg, New York, NY USA
[9] Univ Nebraska, Dept Cardiovasc Surg, Omaha, NE 68182 USA
[10] Univ Louisville, Clin Trials Unit, Louisville, KY 40292 USA
[11] Univ Penn, Dept Cardiovasc Med, Philadelphia, PA 19104 USA
[12] Cleveland Clin, Kaufman Ctr Heart Failure, Cleveland, OH 44106 USA
[13] Abbott, Med Affairs, Pleasanton, CA USA