Affiliation: | a Department of Molecular Biology, Dankook University, Gyeonggi-do 448-701, Republic of Korea b Department of Obstetrics and Gynecology, The Catholic University, Seoul, Republic of Korea c Department of Bioscience and Biotechnology, Sejong University, 98 Kunja-dong, Kwangjin-gu, Seoul 143-747, Republic of Korea |