HematocritCentrifugationCentrifugation, Density GradientCentrifugation, ZonalCentrifugation, IsopycnicHemodilutionBlood ViscosityHemoglobinsErythrocyte CountPlasma VolumeErythropoietinAnemiaCell FractionationPolycythemiaMetrizamideErythrocytesErythrocyte VolumeBlood VolumeExchange Transfusion, Whole BloodMicroscopy, ElectronErythrocyte IndicesMolecular WeightBloodlettingHematologic TestsHemoglobinometryBlood Cell CountErythrocyte AggregationSubcellular FractionsPovidoneIronBlood Chemical AnalysisPlasma SubstitutesErythrocyte TransfusionTime FactorsElectrophoresis, Polyacrylamide GelUltracentrifugationBlood ProteinsReticulocyte CountHypergravityCell SeparationOxygenLiverBlood Specimen CollectionErythropoiesisKineticsBlood TransfusionFiltrationBlood PressureCell MembraneBlood Volume DeterminationSucroseHemorheologySerum AlbuminChromatography, GelPhlebotomyCattlePlatelet CountRenal DialysisRats, Inbred StrainsTritiumKidney Failure, ChronicRabbitsMethodsHydrogen-Ion ConcentrationAnemia, NeonatalErythrocyte DeformabilityIsotonic SolutionsOsmolar ConcentrationAltitudeKidneyDehydrationOrganoidsAnemia, HypochromicColloidsBloodRecombinant ProteinsCesiumPlasmaHydroxyethyl Starch DerivativesReticulocytesFerritinsBlood SubstitutesCapillariesHemodynamicsSwineDextransBody WeightBlood Transfusion, AutologousDogsLeukocyte CountReference ValuesSolubilityTemperatureDetergentsPolycythemia VeraChromatographyOxygen ConsumptionBlood Flow VelocitySilicon DioxideBlood Loss, Surgical