[1] Harvard Med Sch, Beth Israel Deaconess Med Ctr, Boston, MA 02115 USA
[2] Wayne State Univ, Detroit Med Ctr, Detroit, MI 48202 USA
[3] Cleveland Clin Fdn, 9500 Euclid Ave, Cleveland, OH 44195 USA
[4] MedStar Washington Hosp Ctr, Washington, DC USA
[5] St John Hosp & Med Ctr, Detroit, MI USA
[6] Emory Univ, Atlanta, GA 30322 USA
[7] Northshore Univ Hosp, Zucker Sch Med Hofstra Northwell Hlth, Manhasset, NY USA
[8] London Hlth Sci Ctr, London, ON, Canada
[9] Western Univ, Schulich Sch Med & Dent, Dept Epidemiol & Biostat, London, ON, Canada
[10] Keele Univ, Keele Cardiovasc Res Grp, Stoke On Trent, Staffs, England
[11] Royal Stoke Univ Hosp, Stoke On Trent, Staffs, England
[12] Univ Texas Southwestern Med Ctr Dallas, Dallas, TX 75390 USA
[13] Clemenceau Med Ctr, Div Cardiovasc Med, Beirut, Lebanon