Author information:
(1)Neuropsychiatry, Department of Integrated Medicine, Division of Internal 
Medicine, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, 
Japan.
(2)Department of Neuropathology, Faculty of Life and Medical Sciences, Doshisha 
University, Kizugawa, Kyoto 619-0225, Japan.
(3)Neuropsychiatry, Department of Integrated Medicine, Division of Internal 
Medicine, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, 
Japan; Pain and Neurology, Shionogi & Co. Ltd., Osaka, Osaka 561-0825, Japan.
(4)Department of Molecular Virology, Research Institute for Microbial Diseases, 
Osaka University, Suita, Osaka 565-0871, Japan.
(5)Departments of Neurology and Molecular Genetics, Brain Research Institute, 
Niigata University, Niigata, Niigata 951-8520, Japan.
(6)Pain and Neurology, Shionogi & Co. Ltd., Osaka, Osaka 561-0825, Japan.
(7)Department of Psychiatry, Osaka University Health Care Center, Toyonaka, 
Osaka 560-0043, Japan.
(8)Neuropsychiatry, Department of Integrated Medicine, Division of Internal 
Medicine, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, 
Japan. Electronic address: mokochi@psy.med.osaka-u.ac.jp.