1. Department of Radiology, Gangneung Asan Hospital, College of Medicine, University of Ulsan, Gangneung, Korea.
2. Department of Pathology, Gangneung Asan Hospital, College of Medicine, University of Ulsan, Gangneung, Korea.
3. Department of Thoracic and Cardiovascular Surgery, Gangneung Asan Hospital, College of Medicine, University of Ulsan, Gangneung, Korea.