AlbuterolDNA, Ribosomal SpacerBronchodilator AgentsNebulizers and VaporizersAdministration, InhalationMetered Dose InhalersIpratropiumAdrenergic beta-2 Receptor AgonistsInhalation SpacersRacepinephrineAdrenergic beta-AgonistsBronchial SpasmChlorofluorocarbonsOzone DepletionAsthmaAerosol PropellantsAerosolsBronchoconstrictionRespiratory Therapy Department, HospitalBeclomethasoneEquipment DesignAnti-Asthmatic AgentsForced Expiratory VolumeDouble-Blind MethodDNA, RibosomalDNA, IntergenicBronchiolitisDrug IncompatibilityForced Expiratory Flow RatesReceptors, Adrenergic, beta-2Treatment OutcomeRNA, Ribosomal, 23SMasksModels, AnatomicDrug Administration ScheduleRNA, Ribosomal, 5.8SPulmonary Disease, Chronic ObstructiveBudesonideEquipment SafetyAirway ResistanceStereoisomerismRespiratory TherapyMyasthenic Syndromes, CongenitalBronchial Provocation TestsMolecular Sequence DataManikinsRNA, RibosomalTime FactorsBase SequenceHydrocarbons, FluorinatedDrug CombinationsRespiratory Function TestsPhylogenyPropanolaminesAndrostadienesDrug Delivery SystemsGlucocorticoidsSequence Analysis, DNADrug Therapy, CombinationPeak Expiratory Flow RateIntubation, IntratrachealLungAdrenal Cortex HormonesMissouriDNA, FungalRespiration, ArtificialRNA, Ribosomal, 16SRespiratory SoundsLethal Dose 50Radiation DosageSpirometryPlethysmographyRespiratory MechanicsBronchiAnesthesia, InhalationClustered Regularly Interspaced Short Palindromic RepeatsPolymerase Chain ReactionPlacebosTracheaAdministration, OralVital CapacityMaterials TestingDNA, BacterialParticle SizePyrrolidinonesEstrenesMycological Typing TechniquesCross-Over StudiesSpecies Specificity