Angle of fetal head progression measured using transperineal ultrasound as a predictive factor of vacuum extraction failure

作者:Bultez T; Quibel T; Bouhanna P; Popowski T; Resche Rigon M; Rozenberg P
来源:Ultrasound in Obstetrics and Gynecology, 2016, 48(1): 86-91.
DOI:10.1002/uog.14951