Guinea PigsTracheaTracheal NeoplasmsGuineaPapua New GuineaMuscle, SmoothNew GuineaTracheal DiseasesMuscle ContractionSwineTracheal StenosisLungHistamineIleumMuscle RelaxationBronchiAscorbic Acid DeficiencySwine DiseasesSpecies SpecificityDose-Response Relationship, DrugEquatorial GuineaLarynxSRS-ARespiratory SystemBronchoconstrictionDisease Models, AnimalRabbitsElectric StimulationSus scrofaSubstance PAtropineAcetylcholineIntubation, IntratrachealEpitheliumTime FactorsNeurokinin AHypersensitivity, DelayedMucusCarbacholAerosolsIsoproterenolVagus NerveAirway ResistanceCapsaicinPyrilamineAirway ObstructionMyenteric PlexusCalciumOvalbuminBronchoscopyTracheotomyPerilymphTachykininsCochleaAction PotentialsRoseolovirusHeartParasympatholyticsMyocardiumPapillary MusclesPiperidinesBronchial SpasmMolecular Sequence DataSkin TestsDogsAnimal FeedLiverRandom AllocationCoughExocrine GlandsMuscarinic AntagonistsHistamine AntagonistsIndomethacinHistamine H1 AntagonistsAntigensParasympathetic Nervous SystemImmune SeraKineticsAdrenergic beta-AgonistsAminophyllineMembrane PotentialsLeukotriene D4Amino Acid SequencePotassium ChannelsRodent DiseasesTracheitisMethacholine CompoundsVasoactive Intestinal PeptideHemorrhagic Fever, AmericanMucous MembraneReceptors, MuscarinicImmunizationWeaningDiphenylacetic AcidsElectrophysiologyNodose GanglionMicroscopy, ElectronAntitussive AgentsAnaphylaxis