Blood TransfusionErythrocyte TransfusionPlatelet TransfusionExchange Transfusion, Whole BloodPostoperative ComplicationsBlood Component TransfusionBlood Transfusion, AutologousBlood Transfusion, IntrauterineFetofetal TransfusionBlood Loss, SurgicalTreatment OutcomeRetrospective StudiesBlood Grouping and CrossmatchingLeukocyte TransfusionIntraoperative ComplicationsBlood BanksBlood DonorsPostoperative HemorrhageBlood PreservationBlood Group IncompatibilityAnemiaTime FactorsAnemia, NeonatalErythroblastosis, FetalProspective StudiesHemoglobinsHemorrhagePlateletpheresisRisk FactorsOperative Blood SalvageFollow-Up StudiesIntraoperative CareIsoantibodiesLength of StayTranexamic AcidAntifibrinolytic AgentsThrombocytopeniaDiabetes ComplicationsBlood SubstitutesPregnancy ComplicationsAnemia, Sickle CellInfant, NewbornReoperationBlood SafetyFetomaternal TransfusionPerioperative CareHemostasis, SurgicalHemostaticsPlatelet CountPregnancyRh IsoimmunizationPreoperative CareFetoscopyPostoperative CareRisk AssessmentLeukocyte Reduction ProceduresSurgical Procedures, ElectiveCardiopulmonary BypassIncidenceErythropoietinCardiac Surgical ProceduresLaparoscopyDrainageGastrointestinal HemorrhagePlasmaHemodilutionBlood Coagulation Disordersbeta-ThalassemiaSurgical Wound InfectionObstetric Labor ComplicationsHematinicsJehovah's WitnessesIron OverloadSurgical Procedures, OperativeFatal OutcomeChi-Square DistributionAcute DiseasePhlebotomyAprotininTomography, X-Ray ComputedCohort StudiesLiver TransplantationChelation TherapyRecurrenceSurgical Wound DehiscenceSurvival RateIntraoperative PeriodABO Blood-Group SystemAnastomosis, SurgicalIatrogenic DiseaseHematomaEquipment FailureEndoscopySeverity of Illness IndexSplenectomyRh-Hr Blood-Group SystemArthroplasty, Replacement, KneeHemostatic TechniquesLogistic ModelsDevice Removal