[1] Greenville Hosp Syst, Univ Med Grp, Dept Med, Div Neurol, Greenville, SC USA
[2] Univ S Carolina, South Carolina Coll Pharm, Greenville, SC 29605 USA
[3] Univ Med Ctr, Greenville Hosp Syst, Employee Care Ctr, Greenville, SC USA
[4] Univ S Carolina, Sch Med, Greenville, SC 29605 USA
[5] Univ Med Ctr, Greenville Hosp Syst, Greenville, SC USA
[6] Univ S Carolina, Arnold Sch Publ Hlth, Dept Biostat & Epidemiol, Greenville, SC 29605 USA
[7] Univ Med Ctr, Greenville Hosp Syst, Greenville, SC USA