1. Department of Biochemistry and Biomedical Sciences, Seoul National University, College of Medicine, Seoul, Republic of Korea
2. Neuroscience Research Institute, Seoul National University, College of Medicine, Seoul, Republic of Korea
3. Institute of Human Behavioral Medicine, Medical Research Center Seoul National University, Seoul, Republic of Korea
4. Department of Neuropsychiatry, Seoul National University Hospital, Seoul, Republic of Korea
5. Department of Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
6. Department of Geriatric Psychiatry, National Center for Mental Health, Seoul, Republic of Korea
7. Department of Nuclear Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
8. Department of Nuclear Medicine, SMG–SNU Boramae Medical Center, Seoul, Republic of Korea
9. Department of Psychiatry, Seoul National University College of Medicine, Seoul, Republic of Korea