PressureHydrostatic PressureBlood PressureSensitivity and SpecificityBlood Pressure DeterminationHypertensionTransducers, PressureIntraocular PressureIntracranial PressureBlood Pressure Monitoring, AmbulatoryAtmospheric PressureAir PressureVenous PressureHeart RateArterial PressureVentricular PressureTime FactorsHemodynamicsCentral Venous PressureReproducibility of ResultsPulmonary Wedge PressureAntihypertensive AgentsContrast SensitivityOsmotic PressureVascular ResistanceSystolePredictive Value of TestsDogsProspective StudiesDose-Response Relationship, DrugPulseDiastoleBaroreflexManometryInsulin ResistanceCerebrospinal Fluid PressureRats, Sprague-DawleyRegional Blood FlowPositive-Pressure RespirationAnalysis of VarianceROC CurvePressoreceptorsSympathetic Nervous System