Mechanism of tumor cell apoptosis
Diversity natural killer cell inhibitory receptor and
effector mechanism of natural killer cell

1974~1977 Teaching Assistant YUMC
1974~1975 WHO Fellow
1977~1988 Lecturer, Assistant Prof, Associate Prof YUMC
1977~1978 Visiting Fellow, Armand-Frappier Institute,
Canada
1978~1980 Associate Researcher, Sloan-Kettering Institute
for Cancer Research, New York, USA
1984~1985 Visiting Scientist, Fred Hutchinson Cancer
Research Center, Seattle, USA
1988~ Professor, Dept of Microbiology YUMC
1989~1990 Associate Dean for Student Affairs YUMC
1990~1998 Chairman, Professor, Dept of Microbiology YUMC
1996~1999 Chairman, Graduate School of Medical Science
Yonsei University
1997~1999 Chairman Molecular Biology Program, Graduate
School Yonsei University
1998~1999 President, Korean Society for mmunology
1999~2000 President, Korean Society for Microbiology
2000~2001 Director, Institute of Immunology and
Immunological Deseases
2000~ Dean, Yonsei University College of Medicine
2000~ President, Korean Association for Dean of Medical
School

1982 Academic Award in Medical Science, Yonsei University
1989 Dingshin-Smith Klein Academic Award, Korean Medical
Association
1997 Professor of the Year, YUMC
1998 Eu-Dang Academic Award, Korean Medical Association