1. Department of Thoracic and Cardiovascular Surgery, Medical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
2. Department of Pathology, Medical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
3. Department of Radiology, Medical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
4. Department of Obstetrics and Gynecology, Medical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
5. Department of Internal Medicine, Medical Research Institute, Pusan National University Hospital, Busan, Republic of Korea