Respiratory InsufficiencyAnoxiaRespiration, ArtificialOxygen Inhalation TherapyNeuromuscular DiseasesLung Diseases, ObstructiveDoxapramBulbar Palsy, ProgressiveHypercapniaAdrenal InsufficiencyTracheostomyBlood Gas AnalysisPositive-Pressure RespirationIntermittent Positive-Pressure VentilationOxygenPhrenic NerveFatal OutcomePartial PressureNoninvasive VentilationRenal InsufficiencyVenous InsufficiencyChronic DiseaseQuadriplegiaExocrine Pancreatic InsufficiencyDiaphragmLung DiseasesInfant, NewbornPlacental InsufficiencyTreatment OutcomeRespirationRespiratory Function TestsCarbon DioxideRespiratory Distress Syndrome, AdultLungProne PositionPostoperative ComplicationsTime FactorsOximetryRetrospective StudiesPulmonary Gas ExchangeMasksFollow-Up StudiesIntubation, IntratrachealFiber Optic TechnologyExtracorporeal Membrane OxygenationIntensive Care UnitsPrimary Ovarian InsufficiencyBronchoscopyHepatic InsufficiencyPneumonia, Ventilator-AssociatedAcute Lung InjuryAddison DiseaseAdministration, InhalationPneumoniaSheepAortic Valve InsufficiencyAcute DiseaseVelopharyngeal InsufficiencyProspective StudiesAnimals, NewbornVitamin D DeficiencyPulmonary Disease, Chronic ObstructiveVaricose Ulcer