[1] Univ Toledo, Med Ctr, Div Cardiovasc Med, 2801 W Bancroft St, Toledo, OH 43606 USA
[2] Forrest Gen Hosp, Div Med, Hattiesburg, MS USA
[3] Baylor Coll Med, Div Cardiothorac Surg, Houston, TX 77030 USA
[4] Baylor Coll Med, Sect Cardiol, Houston, TX 77030 USA
[5] Harvard Med Sch, Brigham & Womens Hosp, Div Thorac & Cardiac Surg, Boston, MA 02115 USA
[6] ProMed Toledo Hosp, Sect Cardiol, Toledo, OH USA