Education

Education
1985.03	1991.02	Seoul National University College of Medicine	Medicine	M.D.
1996.03	1998.08	Hallym University Graduate School of Medicine	Medicine	M.S.
2001.03	2004.02	Busan National University Graduate School of Medicine	Medicine	Ph.D.

Postgraduate & Faculty Appointments

Postgraduate & Faculty Appointments
1991.03	1992.02	Seoul National University Hospital	Residency
1995.05	1999.02	Samsung Seoul Hospital	Internship
1999.03	1999.08	Samsung Seoul Hospital	Fellow
1999.09	2001.02	Dongguk University Gyeongju Hospital	Instructor
2001.03	2002.09	Dongguk University Gyeongju Hospital	Assistant Professor
2002.10	present	Head & Neck Oncology Clinic, Center for Specific Organs Cancer, National Cancer Center	Doctor
2009.08	present	Center for Thyroid Cancer, National Cancer Center	Doctor
2010.12	2011.12	MD Anderson Cancer Center	Visiting Scientist
2012.01	present	Department of Otolaryngology, National Cancer Center	Specialist
2012.03	present	Center for Thyroid Cancer, National Cancer Center	Head
2019.02	present	Graphic Support Team, National Cancer Center	Chief
2019.02	present	Center for Specific Organs Cancer, National Cancer Center	Adjunct
2019.02	present	Center for Thyroid Cancer, National Cancer Center	Specialist