[1] Univ Mississippi, Med Ctr, Dept Med, Jackson, MS 39216 USA
[2] Dow Univ Hlth Sci, Dept Med, Karachi, Pakistan
[3] New York Med Coll, Dept Cardiol, Westchester Med Ctr, Valhalla, NY 10595 USA
[4] West Virginia Univ, Dept Med, Morgantown, WV 26506 USA
[5] Houston Methodist DeBakey Heart & Vasc Ctr, Div Cardiovasc Prevent & Wellness, Houston, TX USA
[6] Brigham & Womens Hosp, Dept Med, Div Cardiovasc Med, 75 Francis St, Boston, MA 02115 USA
[7] Harvard Med Sch, Boston, MA 02115 USA
[8] VA Boston Healthcare Syst, Dept Med, Cardiol Sect, West Roxbury, MA USA