Hyun Haing Lee, Yong Sung Choi, Suk Kyung Kim, Eun Hye Lee, Yu Seon Min, Sang Hee Lee, Yoo Mee Lee, Hyeon Chul Kim, Tae Won Sunwoo, Chan Lee, Sung Woon Chang, Sun Hee Cha, Jin Ho Cho
Korean J Obstet Gynecol. 2000;43(4):616-624. Published online January 1, 2001