Meral Kanbak1 and Filiz Üzümcügil2

*1Hacettepe University School of Medicine, Department of Anesthesiology and Reanimation, Ankara 2TCSB Ankara Etlik Zübeyde Hanm Maternity and Women's Health Clinic Teaching and Research Hospital, Department of Anesthesiology and Reanimation, Ankara Turkey* 
