Guven Suleyman, Guvendag Guven Emine Seda, Durukan Tekin, Kes Sirri
Department of Obstetrics and Gynecology, Hacettepe University School of Medicine, Ankara, Turkey.
Aust N Z J Obstet Gynaecol. 2004 Apr;44(2):168-9. doi: 10.1111/j.1479-828X.2004.00200.x.