Morphology of chorion in spontaneous abortion.
D000022:Abortion, Spontaneous / Q000473:pathology*; D002114:Calcinosis; D005321:Extraembryonic Membranes / Q000473:pathology*; D005260:Female; D006801:Humans; D006828:Hydatidiform Mole / Q000473:pathology; D011247:Pregnancy; D014470:Umbilical Cord / Q000473:pathology