TY - BOOK AU - Shery Saber Hassanien AU - Hisham Omar Kandiel , AU - Nevine Foad Elhefnawi , AU - Omaima Abdelfataah Edrees , TI - Transvaginal ultrasonographic cervical measurments as a predictor of successful labor induction / PY - 2012/// CY - Cairo : PB - Shery Saber Hassanien , KW - 5MHz KW - Obstetrics and Gynecology KW - SOGC N1 - Thesis (Ph.D.) - Cairo University - Faculty of Medicine - Department of Gynecology and Obstetrics; Issued also as CD N2 - Theoretically , transvaginal ultrasonographic measurements could represent a more accurate assessment of the cervix than the digital examination because the supravaginal portion of the cervix usually comprises about 50 % of cervical length , but this is highly variable among individuals . This portion is difficult to assess digitally . In addition , effacement is subjective and can vary considerably among examiners UR - http://172.23.153.220/th.pdf ER -