Seoul National University (B.S. 1968-1974)
Seoul National University Medical School (M.D. 1977)
Seoul National University Residency in Cardiothoracic Surgery (1974-1979)
National army medical officer (1979-1982)
Hanyang University Cardiothoracic Fellowship and assistant professor (1982-1985)
Sejong Heart center Cardiothoracic chief (1985-1989)
Brompton Hospital(UK) visiting Surgeon (1988)
University of Alabama Cardiovascular fellow (1988)
Ulsan University Cardiothoracic chief and associate professor (1989-1992)
Dankook university Cardiothoracic chief and professor (1992-present)
Maze operation
VAD (pneumatic)
Congenital cardiac morphology
Golf
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