Clark, E.B.

pressure blood velocity aortic heart study heart rate pregnancy waveform embryo doppler pulse fl uid index ultrasound group model color artery volume fetus diastolic pulse wave velocity value umbilical uterine coherence chick dorsal result signi signi ficantly aorta stage obstet circulation weight resistance systolic chick embryo gynecol function method prediction analysis index venou blood pressure control john wiley diameter placental compliance radius frequency gestation blood fl ow magnitude-squared coherence function control group birth magnitude-squared growth restriction odds ratio ficantly aortic pulse pressure struijk preeclampsia relationship figure estimation magnitude-squared coherence talbert pulse pressure women literature hypertension difference salt lake city color doppler line regression venous clip model