AlbuterolMetered Dose InhalersNebulizers and VaporizersBronchodilator AgentsDry Powder InhalersAdministration, InhalationChlorofluorocarbonsAerosol PropellantsInhalation SpacersIpratropiumAdrenergic beta-2 Receptor AgonistsAsthmaAdrenergic beta-AgonistsAerosolsRacepinephrineHealth Care CostsPowdersAnti-Asthmatic AgentsBronchial SpasmBeclomethasoneOzone DepletionCosts and Cost AnalysisEquipment DesignBudesonideForced Expiratory VolumeHydrocarbons, FluorinatedBronchoconstrictionRespiratory TherapyPulmonary Disease, Chronic ObstructiveRespiratory Therapy Department, HospitalDrug CostsDouble-Blind MethodCost of IllnessPeak Expiratory Flow RateBronchiolitisDrug IncompatibilityForced Expiratory Flow RatesReceptors, Adrenergic, beta-2AndrostadienesMasksDrug CombinationsRespiratory Function TestsAdrenal Cortex HormonesEthanolaminesPregnadienediolsFenoterolTerbutalineModels, AnatomicTreatment OutcomeCross-Over StudiesAirway ResistanceRespiratory System AgentsBronchial Provocation TestsParticle SizeEquipment SafetyGlucocorticoidsMyasthenic Syndromes, CongenitalDrug Delivery SystemsManikinsStereoisomerismCost ControlDrug Administration ScheduleSpirometryLungVital CapacityIntubation, IntratrachealDrug Therapy, CombinationCost-Benefit AnalysisDirect Service CostsChlorofluorocarbons, MethanePropanolaminesPregnenedionesRespiratory SoundsRespiration, ArtificialCost SharingMissouriScopolamine DerivativesRespiratory MechanicsBronchiPatient Education as TopicCost AllocationPlethysmographyEmergency Service, HospitalDose-Response Relationship, DrugMaterials TestingAnesthesia, InhalationUnited StatesTracheaBronchial HyperreactivityTime FactorsTherapeutic EquivalencyChemistry, PharmaceuticalSeverity of Illness Index