[1] Med Ctr Navicent Hlth, Dept Surg, 777 Hemlock St,MSC 142, Macon, GA 31201 USA
[2] Med Ctr Navicent Hlth, Dept Crit Care, Macon, GA 31201 USA
[3] Mercer Univ, Sch Med, Dept Community Med Internal Med, Macon, GA 31207 USA
[4] Beth Israel Deaconess Med Ctr, Dept Neurol, Boston, MA 02215 USA
[5] Med Ctr Navicent Hlth, Dept Family Med, Div Geriatr, Macon, GA 31201 USA