Development of Korean bovine mastitis control program
for quality milk promotion service.
Development of mastitis vaccine & dry period anagement
program of dairy cow,
Epidemiological studies on swine lungworm Infestation.

1972~1985 Assistant. Associate Professor. Seoul Nat'l Uni
1981~ Member. The New York Academy of Science
1982~1983 Visiting Professor. Danish Royal Veterinary
& Agricultural Univ
1983~1985 Director of Veterinary Teaching Medical
Hospital .SNU
1983~Member, National Mastitis Counclil of America
1984~ Member. American Assoc. of Bovine Practioners
1984~1986 Editor-in-Chief, korea J. of Vet. Clinical Medicine
1985~ Professor. Seoul National University
1987~ Member. American Animal Hospital Assoc.
1987~1991 Secretary-general & Vice President, Korean
Society of Veterinary Science
1990~1992 Vice Dean of Academic Affairs, CVM, SNU
1992~1993 Visiting Professor, Cornell University
1993~1997 Editor-in-Chief, Korean Veterinary Medical Assoc.
1996~ Korean Director, World Assoc. for Buiatrics
1996~ Executive Vice President, Korean Assoc. for Buiartics
1997~1999 President. Korean Society of Vererinary Science