AnoxiaCell HypoxiaFetal HypoxiaOxygenHypoxia, BrainBlood Gas AnalysisOximetryHypoxia-Inducible Factor 1, alpha SubunitAltitudeOxygen Inhalation TherapyHypercapniaCarbon DioxideHepatopulmonary SyndromePartial PressureHypoxia-Inducible Factor 1Altitude SicknessRespirationPulmonary AtelectasisHypoventilationPulmonary Gas ExchangeZolazepamApneaOxygen ConsumptionTiletaminePulmonary CirculationVentilation-Perfusion RatioPulmonary ArteryChemoreceptor CellsRespiratory MechanicsSheepLungPulmonary Surgical ProceduresPulmonary VentilationRespiratory Distress Syndrome, AdultAcidosis, RespiratorySleep Apnea SyndromesHypertension, PulmonarySleep Apnea, ObstructiveRespiration, ArtificialRespiratory InsufficiencyTime FactorsFetusBlood PressureNitroimidazolesAnimals, NewbornHemodynamicsHeart Rate, FetalOxyhemoglobinsRespiratory Function TestsPulmonary EdemaVascular ResistanceHyperoxiaEtanidazoleAcidosisAcid-Base EquilibriumAcute DiseaseRats, Sprague-DawleyHeart RatePolysomnographyHypocapniaCyanosisPositive-Pressure RespirationHematocritAsphyxiaBlood-Air BarrierHyperventilationCardiac OutputAdaptation, PhysiologicalForamen Ovale, PatentPolycythemiaLactic AcidTolazolineDye Dilution TechniquePulmonary Disease, Chronic ObstructiveLung DiseasesDogsRNA, MessengerProne PositionChronic DiseaseVasoconstrictionXylazineMisonidazoleDisease Models, AnimalHydrogen-Ion ConcentrationBody TemperatureSeverity of Illness IndexGasesAcute Lung InjuryLung ComplianceRegional Blood FlowCobaltVascular Endothelial Growth Factor AArea PostremaPulmonary EmbolismPregnancyHemoglobinsPneumoniaNitric OxideExtracorporeal Membrane OxygenationCells, Cultured