1. Department of Psychiatry, Seoul National University Hospital, Seoul, Republic of Korea;
2. Department of Psychiatry, Kangdong Sacred Heart Hospital, Seoul, Republic of Korea;
3. Emotional Information and Communication Technology Association, Seoul, Republic of Korea;
4. Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, Seoul, Republic of Korea;
5. Department of Psychiatry and Institute of Human Behavioral Sciences, Seoul National University College of Medicine, Seoul, Republic of Korea