Yonsei University Pre-med (1960)
Yonsei University Medical School (M.D. 1965)
Lutheran Medical Center (Gen. Surg. Res. 1966-70)
Temple University (Thoracic Surg. Res. 1972-74)
Video assisted thoracoscopic procedure
Thoracic surgery for lung ca.
Pacemaker
Endovascular surgery
Peripheral vascular surgery: abd/aortic aneurysm