LaryngoscopesIntubation, IntratrachealLaryngoscopyManikinsDisposable EquipmentIntubationEquipment DesignAnesthesiologyFiber Optic TechnologyImmobilizationAirway ManagementLaryngeal MasksVideo RecordingCervical VertebraeEpiglottisAnesthesia, GeneralIntubation, GastrointestinalDecontaminationGlottisTongue DiseasesLarynxGram-Positive RodsAirway ObstructionLungTooth InjuriesSpinal InjuriesTracheaTransducers, PressureLaryngeal DiseasesInstillation, DrugClinical CompetenceBronchoalveolar Lavage FluidTime FactorsFluoroscopyEquipment ContaminationBiguanidesSingle-Blind MethodAllied Health Personnel