Seoul National University Medical College(M.D.1988)
Korean Army Military Captain (Medical Doctor1989-1992)
Seoul National University Hospital Cardiothoracic Surgery Residency(1992-1996)
Hallyum University Sacred Heart Hospital Asst.Professor(1996-2001)
Texas Heart Institute Research Fellow (2001-2002)
Konkuk University Medical Center, Thoracic and Cardiovascular Surgery(2005-)
Artificial Heart (assist device)
Minimally Invasive Cardiac Surgery