Blood TransfusionErythrocyte TransfusionPlatelet TransfusionExchange Transfusion, Whole BloodBlood Transfusion, AutologousBlood Component TransfusionBlood Transfusion, IntrauterineFetofetal TransfusionBlood Loss, SurgicalBlood Grouping and CrossmatchingLeukocyte TransfusionBlood BanksBlood DonorsBlood PreservationBlood Group IncompatibilityAnemia, NeonatalAnemiaErythroblastosis, FetalPlateletpheresisHemoglobinsOperative Blood SalvagePostoperative HemorrhageIsoantibodiesTranexamic AcidAntifibrinolytic AgentsBlood SubstitutesBlood SafetyIntraoperative CareFetomaternal TransfusionThrombocytopeniaRetrospective StudiesRh IsoimmunizationTreatment OutcomeAnemia, Sickle CellLeukocyte Reduction ProceduresFetoscopyPlatelet CountHemorrhageHemostaticsErythropoietinHemodilutionPlasmaPerioperative CareHemostasis, SurgicalHematinicsJehovah's Witnessesbeta-ThalassemiaTime FactorsBlood Coagulation DisordersCardiopulmonary BypassProspective StudiesInfant, NewbornIron OverloadAprotininPhlebotomyRh-Hr Blood-Group SystemPostoperative ComplicationsABO Blood-Group SystemChelation TherapyRisk FactorsPreoperative CareThrombelastographySurgical Procedures, ElectiveCoombs TestHematologyCardiac Surgical ProceduresAntigens, Human PlateletBlood-Borne PathogensBlood PlateletsExsanguinationAcute Lung InjuryAnemia, AplasticPregnancyThalassemiaHemolysisHydrops FetalisAminocaproic AcidErythrocytesGastrointestinal HemorrhageLength of StayLaser CoagulationPostoperative CareBlood Group AntigensWounds and InjuriesErythrocyte AgingTrauma CentersAnemia, RefractoryIron Chelating AgentsResuscitationPlasma SubstitutesIntraoperative PeriodErythrocyte CountRed CrossArthroplasty, Replacement, KneeMyelodysplastic SyndromesBlood Component RemovalCritical IllnessSurgical Procedures, OperativeHepatitis CInfant, Premature