1. Department of Neuropsychiatry, Hallym University Dongtan Sacred Heart Hospital, Hwaseong, Republic of Korea.
2. Department of Neuropsychiatry, Seoul National University Hospital, Seoul, Republic of Korea.
3. Department of Neuropsychiatry, SMG-SNU Boramae Medical Center, Seoul, Republic of Korea.
4. Division of Natural Medical Sciences, College of Health Science, Chosun University, Gwangju, Republic of Korea.
5. Department of Neuropsychiatry, Ulsan University Hospital, Ulsan, Republic of Korea.
6. Department of Neuropsychiatry, Soonchunhyang University Bucheon Hospital, Bucheon, Republic of Korea.
7. Department of Neuropsychiatry, Chungnam University Hospital, Daejeon, Republic of Korea.