Kyriazis, A Placental-radiographic analysis of parasitic acardiac fetus: partially common umbilical circulation. [electronic resource] - The Journal of reproductive medicine Feb 1974 - 74-81 p. digital Publication Type: Journal Article ISSN: 0024-7758 Subjects--Topical Terms: Abnormalities, Severe Teratoid--diagnostic imagingFemaleHumansPlacenta--abnormalitiesPregnancyRadiographyTwinsUmbilical Arteries--abnormalities