HalothaneAdministration, InhalationInhalation ExposureAnesthesiaAnesthesia, GeneralAnesthesia, InhalationAnesthetics, InhalationSmoke Inhalation InjuryBurns, InhalationAnesthesia, LocalIsofluraneInhalationAnesthesia, EpiduralAnesthesia, SpinalAnesthesia, IntravenousAnesthesia, ConductionEnfluraneNitrous OxideAnesthesia, ObstetricalAnesthesia Recovery PeriodAerosolsAnestheticsMethyl EthersAnesthesia, DentalAnesthetics, IntravenousPropofolAdjuvants, AnesthesiaThiopentalAnesthetics, CombinedAnesthesiologyLungPowdersEthersAnesthetics, LocalAnesthetics, GeneralEtherRespirationAnesthesia, Closed-CircuitPreanesthetic MedicationDose-Response Relationship, DrugPentobarbitalMonitoring, IntraoperativeFentanylDogsBronchial Provocation TestsCarbon DioxideLidocaineAtmosphere Exposure ChambersKetamine