1. Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea.
2. Department of Internal Medicine, Chungnam National University College of Medicine. Daejeon, Korea.
3. Department of Nursing, College of Medicine, Konkuk University, Seoul, Korea.
4. Department of Internal Medicine, College of Medicine, Konkuk University, Seoul, Korea.
5. Department of Medical Humanities and Social Sciences, University of Ulsan College of Medicine, Seoul, Korea.
6. Department of Medical History and Medical Humanities, Seoul National University College of Medicine, Seoul, Korea.
7. Department of Nursing, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
8. Department of Preventive Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
9. Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
10. National Jewish Health, Denver, Colorado, USA.