Sung Ha Lee, Byung Hoon Kim, Sun Young Kwak, Su Mi Bae, Dong Jae Kim, Young Wook Kim, Joon Mo Lee, Sung Eun Namkoong, Kye Hyun Nam, Young Lae Cho, Ho Sun Choi, Chong Kook Kim, Byoung Don Han, Woong Shick Ahn
Korean J Obstet Gynecol. 2005;48(2):334-341. Published online February 1, 2005