Continuous Positive Airway PressureRespiratory Distress Syndrome, AdultRespiratory MechanicsHydrostatic PressurePositive-Pressure RespirationPressureRespiration, ArtificialPulmonary VentilationSleep Apnea, ObstructiveAir PressureBlood PressureVentilationAirway ResistanceTidal VolumeAirway ObstructionHigh-Frequency VentilationIntermittent Positive-Pressure VentilationMasksPolysomnographySleep Apnea SyndromesVentilator WeaningVentilators, MechanicalRespirationPulmonary Gas ExchangeIntubation, IntratrachealWork of BreathingAirway RemodelingRespiratory Distress Syndrome, NewbornHigh-Frequency Jet VentilationLung ComplianceLungCarbon DioxideOxygenNoninvasive VentilationBlood Gas AnalysisLung Volume MeasurementsRespiratory Function TestsLaryngeal MasksVentilators, Negative-PressureHypercapniaAirway ManagementPartial PressureHeliumTime FactorsTreatment OutcomeOxygen Inhalation TherapyRespiratory MusclesRespiratory SystemRespiratory InsufficiencyRespiratory Physiological PhenomenaBronchiIntermittent Positive-Pressure BreathingInhalationInfant, NewbornEquipment DesignHemodynamicsPulmonary AtelectasisTracheostomyHumidityHeart Rate