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Reference ranges for umbilical and middle cerebral artery pulsatility index and cerebroplacental ratio in prolonged pregnancies - Palacio - 2004 - Ultrasound in Obstetrics & Gynecology - Wiley Online Library
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Wave reflections in the umbilical artery measured by Doppler ultrasound as a novel predictor of placental pathology - eBioMedicine
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Reference curves of the pulsatility index of fetal umbilical artery... | Download Scientific Diagram
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Pulsatility index (PI), resistance index (RI) from the umbilical artery... | Download Scientific Diagram
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