BupivacaineAnesthetics, LocalAmidesAnestheticsAnesthetics, InhalationAnesthesia, SpinalLidocaineAnesthetics, GeneralAnesthetics, CombinedAnalgesia, EpiduralNerve BlockAnesthetics, IntravenousAnesthesia, EpiduralAnesthesia, LocalAnesthesia, ObstetricalAnalgesia, ObstetricalIsofluraneHalothaneEtidocainePain, PostoperativeFentanylMepivacaineAdjuvants, AnesthesiaAmino AcidsAnesthesia, CaudalEnfluraneSufentanilCarticaineAnesthesia, GeneralDouble-Blind MethodMethyl EthersAnesthetics, DissociativePrilocaineProcaineAnesthesiaCesarean SectionInjections, SpinalPropofolAnalgesics, OpioidStereoisomerismPain MeasurementAnesthesia, DentalTetracaineSequence Homology, Amino AcidAnesthesia, InhalationDose-Response Relationship, DrugBenzocaineMethoxyfluraneAnalgesiaKetamineThiopentalAnesthesia Recovery PeriodAmbulatory Surgical ProceduresAnesthesia, ConductionNitrous OxideBrachial PlexusSubarachnoid SpaceSensationEtomidateAmino Acid SubstitutionMorphineAnalgesia, Patient-ControlledPreanesthetic MedicationDibucaineHypnosis, AnestheticPentobarbitalInjections, EpiduralEtherAmidohydrolasesTime FactorsPregnancyAnesthesiologySciatic NerveEpinephrineLabor, ObstetricAnesthesia, IntravenousCloning, MolecularKineticsBinding SitesStructure-Activity RelationshipRats, Sprague-DawleyModels, MolecularInjectionsChloroformDrug CombinationsHemodynamicsProtein ConformationMolecular Sequence DataProspective StudiesEthersHernia, InguinalDexmedetomidineInjections, Intra-ArticularClonidineTramadolXylazinePostoperative Nausea and VomitingSpecific GravityMeperidineThoracotomy