1. Division of Breast Surgery, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
2. Department of Information Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
3. Department of Psychiatry, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
4. Department of Pulmonology and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
5. Asan Institute for Life Sciences, Asan Medical Center, Seoul, Korea.
6. Department of Preventive Medicine, University of Ulsan College of Medicine, Seoul, Korea.
7. Department of Clinical Epidemiology and Biostatistics, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea.