Chun Sook Park, Jeong Jin Kang, Hae Rim Shin, Myung In Kim, Moon Hong Kim, Ki Jeong Chun, Sung Eun Kim, Beob Jong Kim, Seok Chul Choi, Sang Young Ryu, Eui Don Lee, Kyung Hee Lee
Korean J Obstet Gynecol. 2004;47(12):2373-2379. Published online December 1, 2004