1. Institute of Behavioral Science in Medicine, Yonsei University College of Medicine, Seoul, Korea.
2. Division of Pulmonology, Allergy and Critical Care Medicine, Department of Internal Medicine, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Korea.
3. Department of Psychiatry, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Korea.
4. Yonsei Empathy Psychiatry Clinic, Seoul, Korea.