Baliutavičienė Dalia, Zubruvienė Nijolė, Zalinkevičius Rimantas
Department of Obstetrics and Gynecology, Kaunas University of Medicine, Kaunas, Lithuania.
Int J Gynaecol Obstet. 2011 Mar;112(3):250-1. doi: 10.1016/j.ijgo.2010.11.002. Epub 2011 Jan 17.