^○Hisatake Iwanami^1,2, Masayuki Noda¹, Naoki Izawa³, Koichi Hirata² (1.Nishikata Hospital, 2.Department of Neurology, Dokkyo University School of Medicine, 3.Ashikaga Red Cross Hospital)

^○Keisuke Suzuki¹, Naoki Saji², Takashi Sakurai², Kengo Ito¹, Kenji Toba³ (1.Innovation Center for Clinical Research, National Center for Geriatrics and Gerontology, 2.Center for Comprehensive Care and Research on Memory Disorders, National Center for Geriatrics and Gerontology, 3.President, National Center for Geriatrics and Gerontology)

^○Masahiro Mishina^1,2,3, Shin Kitamura⁴, Genki Mizukoshi^2,3, Yuko Kubota⁵, Yoshiko Uehara⁶, Sachi Miura⁶, Masanori Sakamaki^2,3, Arata Abe^2,3, Hidemi Kawaji⁷, Kazumi Kimura³ (1.Department of Neuro-pathophysiological imaging, Graduate School of Medicine, Nippon Medical School, 2.Department of Neurology, Nippon Medical School Musashi Kosugi Hospital, 3.Department of Neurological Science, Graduate School of Medicine, Nippon Medical School, 4.Dementia-Related Disease Medical Center, Nippon Medical School Musashi Kosugi Hospital, 5.Department of Nursing, Nippon Medical School Musashi Kosugi Hospital, 6.Medical Service Support Center, Nippon Medical School Musashi Kosugi Hospital, 7.Department of Orthopedic Surgery, Nippon Medical School Musashi Kosugi Hospital)

^○Kazuo Shigematsu¹, Nobuyuki Oka¹, Kazuko Hasegawa², Satomi Ishikawa², Yasuhiro Manabe³, Tie Takata³, Tuyoshi Torii⁴, Katuki Watabe⁴, Mitikazu Nakamura⁵, Mieko Iiduka⁵, Itaru Toyoshima⁶, Tomoko Ono⁶, National Hospital Organization Dementia Registry study group⁷, Teruaki Kawasaki⁸, Fukashi Udaka⁹, Kenichi Meguro¹⁰ (1.Minami Kyoto Hospital, National Hospital Organization, 2.Sagamihara Hospital, National Hospital Organization, 3.Okayama Medical Center, National Hospital Organization, 4.Kure Medical Center, National Hospital Organization, 5.Kyoto Medical Center, National Hospital Organization, 6.Akita Hospital, National Hospital Organization, 7.National Hospital Organization, 8.Takeda Hospital, 9.Sumitomo Hospital, 10.Tohoku University)

^○Satoshi Abe, Hiroyuki Takayoshi, Chizuko Hamada, Keiichi Onoda, Shingo Mitaki, Hiroaki Oguro, Shuhei Yamaguchi (Department of Neurology, Shimane University Hospital)

^○Miho Murata¹, Toshinari Odawara², Kazuko Hasegawa³, Ritsuko Kajiwara⁴, Hisao Takeuchi⁴, Masaaki Tagawa⁵, Kenji Kosaka⁶ (1.National Center of Neurology and Psychiatry, 2.Health Management Center, Yokohama City University, 3.Neurology, Sagamihara National Hospital, 4.Drug Development Division, Sumitomo Dainippon Pharma Co., Ltd., 5.Medical Affairs, Sumitomo Dainippon Pharma Co., Ltd., 6.Clinic Ian Center Minami)

^○Hiromi Hayashi¹, Kouji Yamate², Mamiko Satou², Toyoaki Miura², Yasutaka Kobayashi² (1.Fukui General Clinic, 2.Fukui General Hospital)