Seow Kok-Min, Hsieh Bin-Chwen, Tsai Yieh-Loong, Huang Lee-Wen, Hwang Jiann-Loung
Department of Obstetrics and Gynecology, Shin Kong Wu-Ho-Su Memorial Hospital, Taipei, Taiwan.
Acta Obstet Gynecol Scand. 2004 Dec;83(12):1221-4. doi: 10.1111/j.0001-6349.2004.0133c.x.