1. Department of Thoracic and Cardiovascular Surgery Pusan National University Yangsan Hospital, Medical Research Institute of Pusan National University, Pusan South Korea
2. Department of Radiology Asan Medical Center, University of Ulsan College of Medicine Seoul South Korea
3. Department of Thoracic and Cardiovascular Surgery Asan Medical Center, University of Ulsan College of Medicine Seoul South Korea
4. Department of Thoracic and Cardiovascular Surgery Cheju Halla General Hospital Jeju South Korea