Assertion: chorion's surface | /r/CapableOf | serve as placenta
Facets:
value: as in pigs
type: OTHER
Source sentences:
text: The entire surface of the sac may serve as a placenta (diffuse placenta, as in pigs); numerous separate patches of placental thickenings may develop (cotyledonary placenta, as in sheep); a thickened placental band may…