Blood Transfusion, AutologousBlood TransfusionErythrocyte TransfusionTransplantation, AutologousOperative Blood SalvageBlood Loss, SurgicalBlood BanksPlatelet TransfusionBlood DonorsExchange Transfusion, Whole BloodBlood Component TransfusionBlood Transfusion, IntrauterineHemodilutionIntraoperative CareObstetric Surgical ProceduresBlood PreservationPostoperative HemorrhageHematopoietic Stem Cell TransplantationHemoglobinsBlood Grouping and CrossmatchingTreatment OutcomePreoperative CareRetrospective StudiesFetofetal TransfusionAnemiaErythropoietinSurgical Procedures, ElectiveBlood Patch, EpiduralOcular HypotensionPostoperative CarePolygelineErythrocyte CountTranexamic AcidDirected Tissue DonationProspective StudiesHematocritAntifibrinolytic AgentsJehovah's WitnessesPostoperative ComplicationsBlood Cell CountHemorrhageArthroplasty, Replacement, KneeTime FactorsArthroplasty, Replacement, HipBone Marrow TransplantationCombined Modality TherapyTennis ElbowBlood Group IncompatibilityMelphalanCardiopulmonary BypassBloodHemoperitoneumHemarthrosisLeukocyte TransfusionRisk FactorsCerebral HemorrhageBlood SafetyAnemia, NeonatalSubarachnoid HemorrhagePlateletpheresisPerioperative CareFollow-Up StudiesBlood SubstitutesMultiple MyelomaRemission Inductionbeta-ThalassemiaIsoantibodiesInjections, Intra-ArticularHematopoietic Stem Cell MobilizationErythroblastosis, FetalAntineoplastic Combined Chemotherapy ProtocolsHemostaticsTendinopathyAnemia, Sickle CellLeukocyte Reduction ProceduresHemostasis, SurgicalCyclophosphamideGynecologic Surgical ProceduresDogsSurvival RateHodgkin DiseasePulmonary EmbolismAntigens, CD34Red CrossRecurrenceCost-Benefit AnalysisFetomaternal TransfusionTransplantation, HomologousSurvival AnalysisPlatelet CountBlood-Borne PathogensBasilar ArteryRecombinant ProteinsBrain EdemaDisease Models, AnimalHepatitis CGranulocyte Colony-Stimulating FactorAprotininRh IsoimmunizationHematinics