[1] Froedtert Hosp, Dept Med, Div Cardiol, Milwaukee, WI USA
[2] Med Coll Wisconsin, Milwaukee, WI 53226 USA
[3] West Virginia Univ, Dept Cardiol, Morgantown, WV USA
[4] Novant Heart & Vasc Inst, Charlotte, NC USA
[5] Univ Tennessee, Dept Cardiol, Chattanooga, TN USA
[6] Palestine Reg Med Ctr, Dept Med, Div Cardiol, Palestine, TX USA
[7] Mayo Clin, Cardiovasc Med, Rochester, MN USA
[8] Vanderbilt Univ, Dept Cardiol, Med Ctr, Nashville, TN USA
[9] Univ Florida, Dept Cardiol, Coll Med, Jacksonville, FL USA
[10] OhioHlth Riverside Methodist Hosp, Heart & Vasc Serv Line, Columbus, OH USA
[11] Ascens St John Hosp Warren Family Phys, Dept Cardiol, Warren, MI USA
[12] Univ Chicago, Dept Med, 5841 S Maryland Ave, Chicago, IL 60637 USA
[13] Univ Pittsburgh, Dept Med, Div Cardiol, Med Ctr, Pittsburgh, PA USA
[14] Rush Univ, Dept Med, Div Cardiovasc Med, Med Ctr,Rush Med Coll, Chicago, IL USA
[15] Soc Cardiovasc Angiog & Intervent, Washington, DC USA
[16] Darthmouth Hitchcock Hlth Syst, Div Cardiol, Dept Med, Lebanon, NH USA
[17] Kings Daughters Med Ctr, Inst Heart & Vasc, Struct Heart Program, Ashland, KY USA