[1] Aksaray Univ, Training & Res Hosp, Dept Obstet & Gynecol, Aksaray, Turkiye
[2] Hacettepe Univ, Fac Med, Dept Publ Hlth, Div Epidemiol, Ankara, Turkiye
[3] Ankara Univ, Fac Med, Ankara, Turkiye
[4] Univ Dundee, Ninewells Hosp, Assisted Concept Unit, Sch Med,Postgrad Med, Dundee, Scotland
[5] Ankara Trade Ctr, Private Off, Ankara, Turkiye
[6] Ankara Univ, Fac Med, Dept Obstet & Gynecol, TR-06100 Ankara, Turkiye