1. Department of Endocrinology/Metabolism, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
2. Medical Information Office, Asan Medical Center, Seoul, Korea.
3. Department of Biomedical Informatics, Asan Medical Center, Seoul, Korea.
4. Department of Pharmacy, Asan Medical Center, Seoul, Korea.
5. Department of Pulmonary & Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
6. Department of Emergency Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.