[1] Kaohsiung Med Univ, Kaohsiung Med Univ Hosp, Dept Neurol, Kaohsiung, Taiwan
[2] Pingtung Hosp, Dept Neurol, Dept Hlth, Executive Yuan, Pingtung, Taiwan
[3] Kaohsiung Med Univ, Dept & Masters Program Neurol, Sch Med, Coll Med, Kaohsiung, Taiwan
[4] Kaohsiung Med Univ, Kaohsiung Municipal Hsiao Kang Hosp, Dept Neurol, Kaohsiung, Taiwan