[1] Yonsei Univ, Coll Med, Severance Hosp, Dept Neurol, Seoul, South Korea
[2] Nagoya Univ, Dept Neurol, Grad Sch Med, Nagoya, Aichi, Japan
[3] Inje Univ, Coll Med, Ilsan Paik Hosp, Dept Neurol, Goyang, South Korea
[4] Yonsei Univ, Coll Med, Gangnam Severance Hosp, Dept Neurol, Seoul, South Korea
[5] Inje Univ, Coll Med, Busan Paik Hosp, Dept Neurol, Busan, South Korea
[6] Sungkyunkwan Univ, Sch Med, Samsung Med Ctr, Dept Neurol, Seoul, South Korea
[7] Fujita Hlth Univ, Dept Neurol, Toyoake, Aichi, Japan
[8] Aichi Med Univ, Inst Med Sci Aging, Dept Neuropathol, 1-1 Yazakokarimata, Nagakute, Aichi 4801195, Japan
[9] Yonsei Univ, Severance Biomed Sci Inst, Seoul, South Korea