Chen Da-Chung, Chen Chi-Huang, Su Her-Young, Yu Cheng-Ping, Yu Mu-Hsien
Department of Obstetrics and Gynecology, Tri-Service General Hospital, National Defense Medical Center, #325 Section 2 Cheng-Kung Road, Nei-Hu, Taipei 114, Taiwan, ROC.
Acta Obstet Gynecol Scand. 2005 Sep;84(9):917-20. doi: 10.1111/j.0001-6349.2005.0414b.x.