Sam Yong Shim, Yun Seok Yang, Young Rae Song, Sang Hun Jun, Ki Hwan Kim, Kyung Hwa Kang, Byung Kwan Lee, Jeong Hoon Rho, Kwan Young Oh, In Taek Hwang, Ji Hak Jeong, Joon Suk Park
Korean J Obstet Gynecol. 2006;49(1):147-156. Published online January 1, 2006