Blood CellsLeukocyte CountErythrocytesBlood Cell CountPlatelet CountCD4 Lymphocyte CountErythrocyte CountCell CountErythrocyte TransfusionErythrocyte MembraneErythrocyte DeformabilityLeukocytesLymphocyte CountColony Count, MicrobialHemoglobinsHematocritErythrocyte AggregationReticulocyte CountSperm CountErythrocyte AgingHemolysisBlood PreservationTime FactorsErythrocyte IndicesHematologic TestsErythrocyte VolumeHIV InfectionsHematopoiesisLeukocytosisHematopoietic Stem CellsBlood TransfusionFetal BloodOsmotic FragilityParasite Egg CountLymphocytesBlood PlateletsAnemiaThrombocytopeniaAnemia, Sickle CellBiological MarkersErythropoiesisFlow CytometryBlood ViscosityNeutrophilsBone MarrowSpleenAnemia, HemolyticTreatment OutcomeAnion Exchange Protein 1, ErythrocyteHemocytesHematologyProspective StudiesGranulocytesPlasmodium falciparumViral LoadPlasmaRetrospective StudiesHemorheologyLeukocytes, MononuclearErythropoietinBlood Component TransfusionTechnetiumAnti-HIV AgentsBlood Grouping and CrossmatchingAntigens, CD34Spherocytosis, HereditaryRh-Hr Blood-Group SystemCohort StudiesSheepRisk FactorsBlood ProteinsGranulocyte Colony-Stimulating FactorCell SeparationPrognosisCells, CulturedMicrocirculationBone Marrow CellsGlycophorinSplenectomySensitivity and SpecificityPlatelet TransfusionRheologyRosette FormationReference ValuesReticulocytesDose-Response Relationship, DrugInfant, NewbornModels, BiologicalC-Reactive ProteinHeinz BodiesMonocytesHIV-1Predictive Value of TestsBlood SubstitutesLeukopeniaRecombinant ProteinsErythroblastsPregnancy2,3-DiphosphoglycerateErythroid Precursor Cells