Graduated with a doctorate in molecular embryology from Hanyang University - Professor, Department of Biomedical Science, CHA University - Scientific director, Fertility Center of CHA Ganagnam Medical Center - Trained abroad at Cornell University - Won awards for best presentation from the American Society for Reproductive Medicine (2003, 2005, 2009) - Was approved by the country to do research on embryos and cloning (2009) - Establishment of human embryonic stem cells and spermatogonial stem cells, discovered stem cell therapy using human stem cells