Chaing Mai University ( M.D. 1989)
Chaing Mai University , general surgery resident (1989-1992)
Chaig Mai Uni. ,Cardiothoracic surgery fellowship ( 1992-1994)
Royal Melbourn Hospital CVT Registra ( 2000)
OPCABG
Aortic aneurysm surgery
congenital heart surgery
aortic valve sparing surgery