Konyang University Adjunct professor at Chungnam National University Director of Obstetrics and Gynecology at Jeonju Hospital, Hwajeong Foundation, Daejeon Director of Obstetrics and Gynecology, Daejeon Korean Hospital, 2nd Director, Maternal Obstetrics and Gynecology, Daejeon Full member of Korean Obstetrics and Gynecology, Korean