Hyeon Jeong Jeong, Jeong Hwa Kim, Joong Shin Park, Jang Han Kim, Soo Young Oh, Jeong Bin Moon, Mi Ha Kim, Chong Jai Kim, Jong Kwan Jun, Bo Hyun Yoon, Hyun Soon Lee, Hee Chul Syn
Korean J Obstet Gynecol. 2000;43(10):1889-1893. Published online January 1, 2001