作者单位:Hacettepe Univ, Sch Med, Ankara, Turkey[1]Hacettepe Univ, Fac Med, Ankara, Turkey[2]Zekai Tahir Burak Womens Hlth Training & Res Hosp, Ankara, Turkey[3]Etlik Zubeyde Hanim Womens Dis Training & Res Hos, Ankara, Turkey[4]Baskent Univ, Sch Med, Ankara, Turkey[5]