[1] Louisiana State Univ, Hlth Sci Ctr, Dept Neurol, Shreveport, LA 71130 USA
[2] Louisiana State Univ, Hlth Sci Ctr, Dept Radiol, Shreveport, LA 71130 USA
[3] SUNY Buffalo, Sch Med & Biomed Sci, Jacobs Neurol Inst, Buffalo Neuroimaging Anal Ctr,Dept Neurol, Buffalo, NY 14260 USA
[4] Louisiana State Univ, Hlth Sci Ctr, Dept Med, Div Rheumatol, Shreveport, LA 71130 USA
[5] Shriners Hosp Crippled Children, Juvenile Arthrit Ctr, Shreveport, LA USA
[6] Louisiana State Univ, Hlth Sci Ctr, Dept Pathol, Shreveport, LA 71130 USA
[7] Isfahan Univ Med Sci, Dept Neurol, Esfahan, Iran