AlbuterolBronchodilator AgentsNebulizers and VaporizersIpratropiumAdministration, InhalationAdrenergic beta-2 Receptor AgonistsInhalation SpacersRacepinephrineMetered Dose InhalersAdrenergic beta-AgonistsBronchial SpasmOzone DepletionAsthmaChlorofluorocarbonsAerosol PropellantsBronchoconstrictionRespiratory Therapy Department, HospitalAerosolsBronchiolitisForced Expiratory VolumeDrug IncompatibilityForced Expiratory Flow RatesAnti-Asthmatic AgentsReceptors, Adrenergic, beta-2Equipment DesignBeclomethasoneDouble-Blind MethodMasksModels, AnatomicPulmonary Disease, Chronic ObstructiveMyasthenic Syndromes, CongenitalAirway ResistanceRespiratory TherapyGene DosageEquipment SafetyBronchial Provocation TestsStereoisomerismDosage Compensation, GeneticManikinsRespiratory Function TestsPropanolaminesDrug CombinationsTreatment OutcomeBudesonideDosage FormsIntubation, IntratrachealHydrocarbons, FluorinatedPeak Expiratory Flow RateDrug Administration ScheduleMissouriAndrostadienesGlucocorticoidsRespiration, ArtificialPlethysmographyRespiratory SoundsSpirometryAdrenal Cortex HormonesAnesthesia, InhalationRespiratory MechanicsDrug Therapy, CombinationTracheaBronchiDose-Response Relationship, DrugLungVital CapacityEstrenes