1. Department of Psychiatry, Seonam University College of Medicine, Myongji Hospital, Goyang, Republic of Korea.
2. Institute of Behavioral Science in Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea.
3. Department of Sociology, Yonsei University, Seoul, Republic of Korea.
4. Department of Psychiatry,Yonsei University College of Medicine, Seoul, Republic of Korea.
5. Department of Preventive Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea.
6. Division of Silver Industry, Kangnam University, Yongin, Republic of Korea.
7. Department of Clinical Nursing Science, Yonsei University, Seoul, Republic of Korea.