Assertion: umbilical cord's artery | /r/CapableOf | demonstrate high-resistance flow
Facets:
value: before 20 weeks of gestation
type: TEMPORAL
value: on spectral waveforms
type: LOCATION
Source sentences:
text: Before 20 weeks of gestation, the umbilical artery demonstrates high-resistance flow on spectral waveforms obtained with Doppler US.