[1] Amer Coll Cardiol Intervent Cardiol Sect Leadersh, Washington, DC USA
[2] Univ Utah Hlth, Cardiovasc Div, Salt Lake City, UT USA
[3] Harvard Med Sch, Brigham & Womens Hosp, Div Cardiovasc Med, Boston, MA 02115 USA
[4] Brown Univ, Warren Alpert Med Sch, Div Cardiol, Providence, RI 02912 USA
[5] Montefiore Med Ctr, Albert Einstein Coll Med, Div Cardiol, Bronx, NY 10467 USA
[6] Christ Hosp, Carl & Edyth Lindner Ctr Res & Educ, Cincinnati, OH 45219 USA
[7] Inova Heart & Vasc Inst, Div Cardiol, Fairfax, VA USA
[8] Geisel Sch Med Dartmouth, Cardiol Div, Dartmouth Hitchcock Med Ctr, Lebanon, NH USA
[9] Northwestern Univ, Div Cardiol, Feinberg Sch Med, Chicago, IL 60611 USA
[10] Univ Arkansas Med Sci, Dept Cardiovasc Med, Little Rock, AR 72205 USA
[11] Univ Calif San Diego, Div Cardiovasc Med, La Jolla, CA 92093 USA
[12] Columbia Univ, Dept Med, Med Ctr, NewYork Presbyterian Hosp,Div Cardiol, New York, NY USA