Laryngeal MasksMasksIntubation, IntratrachealFiber Optic TechnologyAir PressureLaryngoscopyAnesthesia, GeneralDisposable EquipmentPharyngitisCricoid CartilageLaryngismusAnesthesia, InhalationLarynxEpiglottisEquipment DesignNeuromuscular BlockadeRespiration, ArtificialAirway ManagementAnesthesiaManikinsOropharynxAirway ObstructionPositive-Pressure RespirationPropofolAnesthetics, IntravenousPneumonia, AspirationCapnographyGlottisImmobilizationIntubation, GastrointestinalMethyl EthersFentanylPharynxIntubationAnesthesia, IntravenousTracheostomyLaryngeal MucosaExpiratory Reserve VolumePressureCross-Over StudiesTidal VolumeHypoglossal Nerve InjuriesAmbulatory Surgical ProceduresDysphoniaAnesthesiologyAnesthetics, InhalationInsufflationRecurrent Laryngeal NervePolyvinyl ChlorideBronchoscopyEmergency Medical TechniciansNeckNeuromuscular Depolarizing AgentsMonitoring, IntraoperativeBronchoscopesNitrous OxideAnesthetics, CombinedIntermittent Positive-Pressure VentilationRespiratory Protective DevicesSuccinylcholineNasal Surgical ProceduresProspective Studies