Kyunghee University Medical college(1992)
KCCH cardiothoracic residency(1993-1997)
KCCH general thoracic surgery fellowship(2000-2001)
NCC general thoracic surgery fellowship(2001-2002)
NCC general thoracic surgery faculty(2002- )
Lung Cancer
Mediastinal Tumor
VATS surgery
Esophageal Cancer