1. Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
2. Department of Pulmonology and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
3. Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
4. Department of Pediatrics, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
5. Department of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
6. Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.