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 ...

Previous studies aimed at developing an artificial placenta have had limited success. We hypothesized that the introduction of a high-performance membranous oxygenator to a pumpless artificial ...

The shunts ensure that the circulating blood in the fetus has high oxygen saturation to meet the demand of rapidly growing fetal tissue. The blood that enters the fetal circulation divides into two ...