To examine the association of physical activity on maternal–fetal circulation measured by uterine and umbilical artery Doppler flow velocimetry waveforms. Participants included 781 pregnant women with ...
Eighty to 85% of the venous perfusion to the fetal liver is from the umbilical vein, the rest from the portal vein. Umbilical venous flow to the liver is essential for intrauterine growth, and is ...
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