[1] Osaka Univ, Dept Integrated Med, Div Internal Med, Grad Sch Med, Suita, Osaka 5650871, Japan
[2] Kansai Rousai Hosp, Japan Labour Hlth & Welf Org, Dept Psychiat, Amagasaki, Hyogo, Japan
[3] Osaka Natl Hosp, Dept Psychiat, Natl Hosp Org, Chuo Ku, Osaka, Japan
[4] Hyogo Brain & Heart Ctr, Inst Aging Brain & Cognit Disorders, Himeji, Hyogo, Japan
[5] Kumamoto Univ, Dept Psychiat & Neuropathobiol, Grad Sch Med Sci, Kumamoto, Japan
[6] Ohue Hosp, Asagoshi, Hyogo, Japan
[7] Nishinomiya Kyoritsu Neurosurg Hosp, Nishinomiya, Hyogo, Japan
[8] Kitano Hosp, Dept Neurosurg, Kita Ku, Osaka, Japan
[9] Rakuwakai Otowa Hosp, Dept Neurosurg, Yamashina Ku, Kyoto, Japan