IsofluraneAnesthetics, InhalationHalothaneAnesthesia, InhalationEnfluraneMethyl EthersAdministration, OralAnestheticsNitrous OxideDose-Response Relationship, DrugRats, Sprague-DawleyAnesthesiaDrug Administration ScheduleEthersDogsTime FactorsInjections, IntravenousAnesthetics, IntravenousHemodynamicsPropofolRats, WistarUnited States Food and Drug AdministrationAnesthesia, GeneralDrug InteractionsDrug Administration RoutesFentanylAnesthetics, GeneralAnesthesia Recovery PeriodXenonBlood PressureDepression, ChemicalDisease Models, AnimalMice, Inbred C57BLBlood Gas AnalysisAdministration, IntranasalBrainHeart RateMethoxyfluraneInjections, IntraperitonealElectroencephalographyThiopentalLiverPulmonary AlveoliKetaminePentobarbitalIschemic Preconditioning, MyocardialHeartInjections, SubcutaneousInfusions, IntravenousAnesthetics, CombinedEtherRandom AllocationRats, Inbred StrainsAdministration, RectalNeuroprotective AgentsRabbitsHalf-LifeBiological AvailabilityAdjuvants, AnesthesiaCoronary CirculationInjections, IntraventricularInjections, IntramuscularIschemic PreconditioningCarbon DioxideDouble-Blind MethodBehavior, AnimalAdministration, TopicalAdministration, InhalationArea Under CurveAnesthesia, IntravenousPartial PressureCerebrovascular CirculationMyocardial ContractionCross-Over StudiesAdministration, IntravenousMorphinePreanesthetic Medication