Blood TransfusionBlood Transfusion, AutologousErythrocyte TransfusionTransplantation, AutologousPlatelet TransfusionExchange Transfusion, Whole BloodBlood Loss, SurgicalBlood Component TransfusionBlood Transfusion, IntrauterineBlood BanksBlood DonorsBlood Grouping and CrossmatchingOperative Blood SalvageFetofetal TransfusionAnemiaPostoperative HemorrhageTranexamic AcidHemoglobinsTreatment OutcomeAntifibrinolytic AgentsIntraoperative CareJehovah's WitnessesBlood PreservationRetrospective StudiesBlood Group IncompatibilityLeukocyte TransfusionHemodilutionBlood SafetyAnemia, NeonatalPlateletpheresisPerioperative CareTime FactorsHematopoietic Stem Cell TransplantationBlood SubstitutesPostoperative ComplicationsProspective Studiesbeta-ThalassemiaIsoantibodiesErythropoietinErythroblastosis, FetalBone Marrow TransplantationHemostaticsRisk FactorsAnemia, Sickle CellHemorrhageLeukocyte Reduction ProceduresHemostasis, SurgicalPreoperative CareRed CrossSurgical Procedures, ElectivePostoperative CareCardiopulmonary BypassFetomaternal TransfusionCombined Modality TherapyTransplantation, HomologousPlatelet CountBlood-Borne PathogensHepatitis CArthroplasty, Replacement, KneeAprotininRh IsoimmunizationHematinicsPlasmaLength of StayGastrointestinal HemorrhageCardiac Surgical ProceduresThrombocytopeniaFollow-Up StudiesInfant, NewbornIron OverloadChelation TherapyPostpartum HemorrhageLymphoma, Non-HodgkinSurgical Procedures, OperativeThalassemiaHepatitis C AntibodiesBlood Coagulation DisordersStem Cell TransplantationHematocritPhlebotomyReticulocyte CountChi-Square DistributionGraft SurvivalHepatectomyArthroplasty, Replacement, HipSurvival RateBlood Cell CountErythrocytesAminocaproic AcidPregnancyHepatitis, Viral, HumanMelphalanAntineoplastic Combined Chemotherapy ProtocolsRisk AssessmentCreutzfeldt-Jakob SyndromeSurvival AnalysisPeptic Ulcer HemorrhageSeroepidemiologic StudiesLymphocyte Culture Test, MixedRecurrence