[1] Huazhong Univ Sci & Technol, Tongji Med Coll, Dept Neurol, Union Hosp, 1227 Jiefang Ave, Wuhan, Hubei, Peoples R China
[2] Huazhong Univ Sci & Technol, Tongji Med Coll, Dept Radiol, Union Hosp, Wuhan, Hubei, Peoples R China
[3] Wuhan Red Cross Hosp, Dept Neurol, Wuhan, Hubei, Peoples R China
[4] Wuhan Red Cross Hosp, Dept Radiol, Wuhan, Hubei, Peoples R China
[5] Harvard Med Sch, McLean Hosp, Lab Psychiat Neurogen, Belmont, MA 02478 USA
[6] Univ Calif San Diego, Dept Med, La Jolla, CA 92093 USA