Jae Yoon Shim, Sung Hoon Kim, Jung Sook Kim, Song Mi Ahn, Eul Ju Seo, Han Wook Yoo, Gu Hwan Kim, Ji Young Lee, Eun Young Choi, Hye Sung Won, Dae Shik Suh, Pil Ryang Lee, Ahm Kim
Korean J Obstet Gynecol. 2004;47(3):487-494. Published online March 1, 2004