Blood TransfusionBlood Transfusion, AutologousErythrocyte TransfusionPlatelet TransfusionExchange Transfusion, Whole BloodBlood Component TransfusionBlood Loss, SurgicalBlood Transfusion, IntrauterineBlood BanksBlood DonorsBlood Grouping and CrossmatchingOperative Blood SalvageFetofetal TransfusionAnemiaHemoglobinsPostoperative HemorrhageTranexamic AcidAntifibrinolytic AgentsIntraoperative CareJehovah's WitnessesBlood PreservationBlood Group IncompatibilityRetrospective StudiesPlasmaTreatment OutcomeHemodilutionPlateletpheresisBlood SafetyBlood SubstitutesAnemia, NeonatalLeukocyte TransfusionPerioperative CareBlood Specimen Collectionbeta-ThalassemiaTime Factors