[1] East Carolina Univ, Off Med Educ, Brody Sch Med, Greenville, NC USA
[2] Univ Pittsburgh Med Ctr UPMC, Dept Phys Med & Rehabil, Pittsburgh, PA USA
[3] East Carolina Univ, Dept Pathol, Brody Sch Med, Greenville, NC USA
[4] East Carolina Univ, Dept Anat & Cell Biol, Brody Sch Med, Greenville, NC USA
[5] Vidant Med Ctr, Div Stroke & Neurocrit Care, Greenville, NC USA
[6] East Carolina Univ, Dept Phys Med & Rehabil, Brody Sch Med, Greenville, NC USA