Pneumonia, AspirationRespiratory AspirationAdministration, InhalationInhalation ExposureSuctionSmoke Inhalation InjuryBurns, InhalationInhalationBiopsy, Fine-NeedleAspirations (Psychology)Biopsy, NeedleMeconium Aspiration SyndromeAerosolsEndoscopic Ultrasound-Guided Fine Needle AspirationThyroid NoduleLungAnesthetics, InhalationBronchoscopyAnesthesia, InhalationPowdersDeglutition DisordersForeign BodiesEndosonographyCytodiagnosisVacuum CurettageDeglutitionBronchial Provocation TestsThrombectomyAsthmaBronchiBronchoalveolar Lavage FluidAtmosphere Exposure ChambersThyroid NeoplasmsAir Pollutants, OccupationalBronchodilator AgentsAlbuterolParticle SizeMediastinumCoughSensitivity and SpecificityDry Powder InhalersTime FactorsXenon RadioisotopesForced Expiratory VolumeInhalation SpacersAirway ObstructionPneumoniaMethacholine ChlorideDrainageTracheaRespirationRetrospective StudiesLarynxAirway ResistanceRespiratory TherapyBronchoconstrictionRats, Inbred F344Bronchial HyperreactivityAir PollutantsLymphatic DiseasesLung DiseasesBurnsRespiratory Function TestsMetered Dose InhalersRespiratory SystemCarboxyhemoglobinUltrasonography, InterventionalDustSmokeEquipment DesignThyroid GlandOxygen Inhalation TherapyIsocyanatesTuberculosis, Lymph NodeTreatment OutcomeCarbon DioxideCystsTrichloroethanesTomography, X-Ray ComputedOccupational ExposureHydrocarbonsNitrous OxideTherapeutic IrrigationCromolyn SodiumCricoid CartilageOxygen RadioisotopesBronchoconstrictor AgentsGasesPlutoniumNeedlesPneumothoraxIntubation, IntratrachealFluoroscopyDose-Response Relationship, DrugProspective StudiesLymph NodesFalse Negative ReactionsNasal CavityAerosol PropellantsCarcinoma, Papillary