Yamanaka Yoshihiko, Takeuchi Kyousuke, Sugimoto Makoto, Sato Asomi, Nakago Satoshi, Maruo Takeshi
Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe, Japan.
Acta Obstet Gynecol Scand. 2003 Oct;82(10):972-3. doi: 10.1034/j.1600-0412.2003.00211.x.