Blood ViscosityViscosityHematocritErythrocyte AggregationHemorheologyHemodilutionRheologyErythrocyte DeformabilityExchange Transfusion, Whole BloodIsoxsuprineFibrinogenPolycythemiaCapillary ResistanceBlood Flow VelocityStress, MechanicalPlasma SubstitutesShear StrengthMicrocirculationErythrocyte CountBlood PressureErythrocytes, AbnormalErythrocyte TransfusionBlood Physiological PhenomenaBlood VolumeErythrocytesHemoglobinsErythrocyte IndicesCerebrovascular CirculationAnemia, Sickle CellHemostasisOxygenModels, CardiovascularPulsatile Flow