1961. 02 Àü³²´ëÇб³ ¹®¸®°ú´ëÇÐ ÀÇ¿¹°úÁ¹¾÷
1965. 02 Àü³²´ëÇб³Àǰú´ëÇÐ ¼ö·á, Àü³²´ëÇб³ ÃÑÀå»ó ¼ö»ó
1965. 06 ´ëÇѹα¹ ÀÇ»ç¸éÇã Ãëµæ
1965. 05 ~ 1968. 05 ´ëÇѹα¹ ÇØ±º±ºÀǰü
1968. 07 ~ 1969. 06 Intern(ST. Elizabeth Hospital, Ohio, USA)
1969. 07 ~ 1973. 06 Resident, General Surgery
(ST. Elizabeth Hospital, Ohio, USA)

1973. 07 ~ 1974. 06 Fellow, Thoracic Surgery
(Henry Ford Hospital, Michigan, USA)
1973. 08 Ohio State, Medical Board ÀÇ»ç¸éÇã Ãëµæ
1974. 04 The American Board of Surgery Àü¹®ÀÇ ½ÃÇèÇÕ°Ý
1974. 07 ~ 1975. 04 American Staff in General Surgery
(ST. Elizabeth Hospital, Ohio, USA)
1975. 11 ~ 1976. 04 ´ëÇѹα¹ ¿Ü°úÀü¹®ÀÇ ½ÃÇèÇÕ°Ý
1976. 05 Resident, General Surgery
1976. 04 ~ 1979. 05 Àü³²´ëÇб³ Àǰú´ëÇÐ Á¶±³¼ö(¿Ü°úÇÐ)

1981. 12 The American Board of Surgery Àü¹®ÀÇ ½ÃÇèÇÕ°Ý
1983. 11 ¿©¼öÀü³²º´¿øÀå ÃëÀÓ,
±¹¸³Àü³²´ë ÀÇ´ë ÀϹݿܰú ¿Ü·¡±³¼ö

1996 ~ ÇöÀç ¹Ì±¹ ¿Ü°ú Fellow