NailsMicrocirculationBlood Flow VelocityMicroscopic AngioscopyCapillariesSkin Window TechniqueErythrocytesRetinal VesselsLaser-Doppler FlowmetryMesocricetusRegional Blood FlowArteriolesHemodynamicsBlood CellsLeukocytesOxygenBlood PressureCell MovementBlood Cell CountErythrocyte TransfusionErythrocyte CountErythrocyte MembraneNeural ConductionErythrocyte DeformabilityLeukocyte CountEchocardiography, DopplerTime FactorsRheologyPulsatile FlowErythrocyte AggregationHemoglobinsHematocritBiomechanical PhenomenaUltrasonography, DopplerDiastoleUltrasonography, Doppler, TranscranialErythrocyte AgingHemolysisKineticsUltrasonography, Doppler, ColorEchocardiography, Doppler, PulsedHemorheologyBlood PreservationUltrasonography, Doppler, PulsedCerebrovascular CirculationModels, BiologicalRotationMovementMiddle Cerebral ArteryReference ValuesSystoleEchocardiography, Doppler, Color