HematocritHemodilutionLeukocyte CountErythrocyte CountBlood ViscosityPlatelet CountHemoglobinsBlood Cell CountCD4 Lymphocyte CountPlasma VolumeAnemiaErythropoietinPolycythemiaCell CountErythrocyte VolumeBlood VolumeExchange Transfusion, Whole BloodReticulocyte CountHematologic TestsErythrocyte IndicesErythrocytesBloodlettingHemoglobinometryErythrocyte AggregationLymphocyte CountPlasma SubstitutesIronBlood Chemical AnalysisErythrocyte TransfusionColony Count, MicrobialTime FactorsErythropoiesisSperm CountBlood TransfusionBlood PressureOxygenBlood Volume DeterminationBlood ProteinsPhlebotomyHemorheologyRenal DialysisKidney Failure, ChronicAnemia, NeonatalErythrocyte DeformabilitySerum AlbuminIsotonic SolutionsAltitudeAnemia, HypochromicBody WeightProspective StudiesDehydrationHydroxyethyl Starch DerivativesPolycythemia VeraCapillariesHemodynamicsFerritinsBlood SubstitutesReference ValuesMicrocirculationRetrospective StudiesBlood Transfusion, AutologousBlood Flow VelocityBlood Loss, SurgicalSplenectomyHIV InfectionsTreatment OutcomeEaglesRecombinant ProteinsBlood Specimen CollectionRheologyParasite Egg CountAnemia, Iron-DeficiencyPlasmaCerebrovascular CirculationThrombocytopeniaRegression AnalysisCardiopulmonary BypassOxygen Consumption