1. Department of Thoracic and Cardiovascular Surgery, Seoul National University Bundang Hospital, Seongnam, Korea
2. Department of Thoracic and Cardiovascular Surgery, Seoul National University College of Medicine, Seoul, Korea
3. Department of Pathology and Translational Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
4. Department of Pathology, Seoul National University College of Medicine, Seoul, Korea