Young Min Choi, Seung Yup Ku, Sung Tack Oh, Kyu Ri Hwang, Soon Beom Kang, Sung Hyo Park, Eun Ran Chang, Noh Hyun Park, In Ae Park, Jong Kwan Jun, Chang Suk Suh, Seok Hyun Kim, Jung Gu Kim, Shin Yong Moon
Korean J Obstet Gynecol. 2004;47(6):1204-1209. Published online June 1, 2004