In Sook Sohn, Dalyeong Yoo, Dong Wook Jang, Yun Jeong Cha, Soo Nyung Kim, Ji Young Lee, Byung Il Yun, So Chung Chung, Ki Hyun Park, Byung Seok Lee, Kyung Joo Hwang, Andrew R Zinn
Korean J Obstet Gynecol. 2004;47(8):1558-1564. Published online August 1, 2004