Ph.D, Hanyang U., Seoul, Korea : 1996
Dir. of human in vitro fertilization lab., Asan Medical Center, Seoul, Korea : 1995-99
Postdoctoral rsch. fellow, The Population Council, The Rockefeller University, NYC : 1999-2001
Postdoctoral rsch. Assoc., UIUC : 2021-2022
Vis. Rsch asst prof. UIUC : 2022-2024
Professor, Sungshin Women’s University : 2005 –
Member, Soc. For the Study of Reproduction, Endocrine Society, The Korean Society of Reprductive Medicine, The Korean Society of Developmental Biology, The Korean Society of Cell Biology