[1] Northwestern Univ, Dept Neurol, Sch Med, Chicago, IL 60611 USA
[2] VA Boston Healthcare Syst, Boston, MA USA
[3] Brigham & Womens Hosp, Boston, MA 02115 USA
[4] Paris Descartes Univ, Hop St Anne, Dept Neurol, INSERM U894, Paris, France
[5] Duke Univ, Div Cardiol, Durham, NC USA
[6] Univ Minnesota, Sch Publ Hlth, Minneapolis Heart Inst Fdn, Minneapolis, MN USA
[7] Univ Minnesota, Sch Publ Hlth, Div Epidemiol & Community Hlth, Minneapolis, MN USA
[8] Johannes Wesling Klinikum, Acad Teaching Hosp, Hannover Med Sch, Dept Neurol, Minden, Germany
[9] Sanofi Aventis, Paris, France
[10] Tokai Univ, Sch Med, Isehara, Kanagawa 25911, Japan
[11] Univ N Carolina, Ctr Cardiovasc Sci & Med, Chapel Hill, NC 27515 USA
[12] Natl Taiwan Univ Hosp, Taipei, Taiwan
[13] Atlanta VA Med Ctr, Atlanta, GA USA
[14] Emory Univ, Sch Med, Atlanta, GA USA
[15] Univ Paris 07, AP HP, INSERM, U698, Paris, France