Ropacka-Lesiak, Mariola [Umbilical cord collision in the first trimester in a monoamniotic twin pregnancy--does it really matter?]. [electronic resource] - Ginekologia polska Sep 2012 - 708-12 p. digital Publication Type: Case Reports; Journal Article ISSN: 0017-0011 Subjects--Topical Terms: Amnion--diagnostic imagingDiseases in Twins--diagnostic imagingEarly DiagnosisFemaleFetal Distress--diagnostic imagingHumansInfant, NewbornPregnancyPregnancy OutcomePregnancy, TwinTwins, MonozygoticUltrasonography, PrenatalUmbilical Arteries--diagnostic imagingUmbilical Cord--diagnostic imagingVascular Resistance