OximetryOxygenBlood Gas Monitoring, TranscutaneousCapnographyOxyhemoglobinsMonitoring, IntraoperativeWorkNeonatal ScreeningHypoventilationAnoxiaMonitoring, PhysiologicMethemoglobinemiaOxygen Inhalation TherapySpectroscopy, Near-InfraredForeheadRetinal VeinBlood Gas AnalysisSleep Apnea SyndromesHeart Defects, CongenitalPartial PressureDye Dilution TechniqueElectron Spin Resonance SpectroscopyConscious SedationOxygen ConsumptionRecovery RoomInfant, NewbornDeep SedationPolysomnographyProspective StudiesRetinal Artery