"Specialization" Hernia in children, congenital anorectal malformations, congenital megacolon, emergency surgery of newborns, biliary tract atresia, tumors in children
"Education" 1968.02 College of Humanities and Natural Sciences of Seoul National University, medical preparatory courses 1968.03 - 1972.02 Bachelor of Medical College of Seoul National University 1973.03 - 1975.02 Master of Medical College of Seoul National University 1975.03 - 1978.08 Doctoral studies at Seoul National University Medical College
"Experience and Internships" 1979.09 - 1980.11Seoul National University Hospital, Doctor 1980.04 - 1980.11 Seoul National University Medical College, Freelance Lecturer
1980.11 - 1983.11 Seoul National University Medical College, full-time lecturer 1983.04 - 1987.09 Seoul University Medical College, Associate Professor 1984.02 - 1985.01 Massachusetts General Hospital (USA), Researcher 1989.09 - 1989.10 Seattle Children's Hospital, Visiting Researcher 1987.10 - 1992.09 Seoul National University Medical College, Associate Professor 1992.10 - 2014.02 Seoul National University Medical College, Professor 2014.03 – present: Chung-Ang University Clinic, Department of Pediatrics, Clinical Professor