Carbon DioxidePneumoniaCarbonPneumonia, BacterialPneumonia, ViralPneumonia, PneumococcalCryptogenic Organizing PneumoniaNitrogen DioxidePneumonia, PneumocystisCarbon MonoxidePneumonia, StaphylococcalPartial PressureSulfur DioxideCapnographyInsufflationNanotubes, CarbonPneumonia, Ventilator-AssociatedPneumonia, AspirationAtmosphereOxygenRespirationHypercapniaCommunity-Acquired InfectionsPneumonia, MycoplasmaCarbon IsotopesPulmonary Gas ExchangeBlood Gas Monitoring, TranscutaneousChromatography, Supercritical FluidBlood Gas AnalysisLasers, GasPneumonia, LipidCarbon SequestrationTidal VolumePneumoperitoneum, ArtificialLungCarbon Monoxide PoisoningDry IceAcidosis, RespiratoryRespiration, ArtificialLung Diseases, InterstitialOxygen ConsumptionCarbon FootprintBicarbonatesGasesThorium DioxideHydrogen-Ion ConcentrationRespiratory InsufficiencyAirRespiratory Dead SpaceMethaneEcological Systems, ClosedCarbon TetrachlorideCarbonic AnhydrasesGreenhouse EffectBiomassPhotosynthesisAnti-Bacterial AgentsIdiopathic Interstitial PneumoniasTime FactorsHypocapniaAir PollutantsNitrogenHyperventilationEmbolism, AirStreptococcus pneumoniaeHypoventilationProspective StudiesCarbonatesPulmonary VentilationCarbon DisulfideAnesthesia, InhalationOxidesAcetatesTitaniumCerebrovascular CirculationTemperatureRespiratory MechanicsRespiratory Function TestsBronchoalveolar Lavage FluidMurine pneumonia virusChemoreceptor CellsCarbon CyclePneumocystis jiroveciiIntubation, IntratrachealNitrous OxideAcid-Base EquilibriumVentilators, MechanicalAutotrophic ProcessesPneumocystisHydrogenSilicon DioxidePneumoperitoneumSoilHeliumEuthanasia, AnimalLegionnaires' DiseaseCulture MediaAnesthetics, InhalationLung Diseases, ObstructiveAnoxia