[1] Ronald Reagan UCLA Med Ctr, Stroke Ctr, Los Angeles, CA USA
[2] Ronald Reagan UCLA Med Ctr, Dept Neurol, Los Angeles, CA USA
[3] Massachusetts Gen Hosp, Dept Neurol, Boston, MA 02114 USA
[4] Massachusetts Gen Hosp, Stroke Serv, Boston, MA 02114 USA
[5] Univ Calgary, Hotchkiss Brain Inst, Dept Clin Neurosci, Calgary Stroke Program, Calgary, AB, Canada
[6] Duke Clin Res Inst, Durham, NC USA
[7] Ronald Reagan UCLA Med Ctr, Dept Med, Los Angeles, CA USA
[8] Ronald Reagan UCLA Med Ctr, Div Cardiol, Los Angeles, CA USA