College of Medicine, Seoul National University (M.D.1994)
Seoul National University Hospital Internship (1994~1995)
Seoul National University Residency (1995~1999)
Military Officer, Korean Army (1999~2002)
Seoul National University Hospital fellowship (2002~2003)
Sejong General Hospital (2003~2004)
Assistant professor, Department of cardiothoracic surgery, Seoul National University Hospital (2004-
Esophageal cancer
Pediatric general thoracic surgery
Tumor immunology
video-assisted thoracoscopic surgery
Lung transplantation