Nitrogen FixationNitrogen IsotopesNitrogen CompoundsBlood Urea NitrogenNitrogen CycleNitrogen DioxideBlood PressureReactive Nitrogen SpeciesHypertensionNitrogen OxidesPII Nitrogen Regulatory ProteinsNitratesCarbonAmmoniaFertilizersIntraocular PressureAntihypertensive AgentsQuaternary Ammonium CompoundsGlutamate-Ammonia LigaseUreaTime FactorsCarbon DioxideBlood Pressure DeterminationSoilTonometry, OcularHeart RateOxygenNitrogen Mustard CompoundsPressureHemodynamicsMercuryAmino AcidsNitrogenaseSystoleVascular ResistanceSymbiosisBiomassDogsGlutamineDiastolePlant RootsBlood Pressure Monitoring, AmbulatoryHypotensionKidneyHydrogen-Ion ConcentrationOcular HypertensionPartial PressurePlant LeavesAcetyleneProspective StudiesNitritesBacterial ProteinsMolecular Sequence DataNitric OxideBody WeightCulture MediaTreatment OutcomeDigestionFollow-Up StudiesKineticsRandom AllocationGene Expression Regulation, BacterialPhosphorusGlutamate SynthaseAmmonium CompoundsAllantoinReninDose-Response Relationship, DrugOxidation-ReductionPulmonary Wedge PressureSwineRats, Sprague-DawleyBlood Pressure MonitorsRoot Nodules, PlantDouble-Blind MethodPoaceaeIntracranial PressureHydrochlorothiazideRegional Blood FlowNitrate ReductaseDenitrificationSodium ChloridePhotosynthesisEcosystemAnalysis of VarianceVenous PressureAnimal FeedGlaucomaCyanobacteriaBlood Flow VelocityArginineSodiumArteriesCardiac OutputGenes, BacterialReference ValuesKetoglutaric AcidsOxygen ConsumptionManometryPotassium