Seo Yeong Park, Young Min Choi, Sung Hyo Park, Se Won Yang, Seung Yup Ku, Seok Hyun Kim, Soo Woong Kim, Jai Seung Paik, Do Hoon Yang, Doo Seok Choi, Hyuck Chan Kwon, Dong Hee Choi, Sook Hwan Lee
Korean J Obstet Gynecol. 2001;44(4):655-662. Published online April 1, 2001