[1] St Vincent Heart Ctr Indiana, Dept Cardiol, Indianapolis, IN 46260 USA
[2] Peter Munk Cardiac Ctr, Div Cardiac Surg, Toronto, ON, Canada
[3] Univ Rochester, Dept Surg, Rochester, NY USA
[4] Abbott NW Hosp, Dept Cardiothorac Surg, Minneapolis, MN 55407 USA
[5] San Diego State Univ, Bioengn Program, San Diego, CA 92182 USA
[6] Albert Einstein Coll Med, Montefiore Med Ctr, Div Cardiol, Bronx, NY 10467 USA
[7] Houston Methodist Hosp, Dept Cardiol, Houston, TX USA