Fetal BloodBlood TransfusionErythrocyte TransfusionBlood Transfusion, IntrauterineCordocentesisPlatelet TransfusionExchange Transfusion, Whole BloodFetusPregnancyBlood Transfusion, AutologousBlood Component TransfusionFetomaternal TransfusionErythroblastosis, FetalMaternal-Fetal ExchangeFetofetal TransfusionRh IsoimmunizationFetal DiseasesFetoscopyPlacentaAmniotic FluidHydrops FetalisGestational AgeHeart Rate, FetalPrenatal DiagnosisFetal HypoxiaBlood Specimen CollectionSheepUmbilical ArteriesBlood Loss, SurgicalBlood Grouping and CrossmatchingHemoglobinsLeukocyte TransfusionUltrasonography, PrenatalUmbilical CordPlacental CirculationFetal Growth RetardationFetal DeathBlood BanksPregnancy Trimester, ThirdFetal WeightInfant, NewbornPregnancy, AnimalBlood DonorsCardiotocographyPregnancy Trimester, SecondBlood PreservationBlood Gas AnalysisFetal Stem CellsVitamin K Deficiency BleedingBlood Group IncompatibilityFetal HemoglobinAnemia, NeonatalAnemiaHemoglobinopathiesLabor, ObstetricPlateletpheresisErythrocyte CountUltrasonography, DopplerAmniocentesisFetal HeartErythema InfectiosumOperative Blood SalvagePostoperative HemorrhageIsoantibodiesAcidosisUmbilical VeinsBlood Flow VelocityOxygenAnesthesia, ObstetricalTranexamic AcidBlood VolumeAntifibrinolytic AgentsBlood SubstitutesBlood SafetyIntraoperative CareFetal DevelopmentErythrocytesChorionic VilliErythroblastsThrombocytopeniaPregnancy Trimester, FirstRetrospective StudiesCesarean SectionPulsatile FlowTreatment OutcomeAnemia, Sickle CellLeukocyte Reduction ProceduresEmbryonic and Fetal DevelopmentUterusPlatelet CountHemorrhageUltrasonographyHematocritHemostaticsCarbon DioxideErythropoietinHemodilutionPlasmaHematopoietic Stem CellsPerioperative Care