CoughAsthmaWhooping CoughAntitussive AgentsAnti-Asthmatic AgentsRespiratory SoundsAdministration, InhalationAsthma, Exercise-InducedForced Expiratory VolumePeak Expiratory Flow RateBronchial HyperreactivityBronchodilator AgentsAsthma, OccupationalAllergensRespiratory Function TestsAdrenal Cortex HormonesHypersensitivityBronchitisHypersensitivity, ImmediateRhinitisMethacholine ChlorideSpirometryAlbuterolBronchiRhinitis, Allergic, PerennialLungCapsaicinSputumBeclomethasoneVital CapacitySeverity of Illness IndexBudesonideNebulizers and VaporizersLeukotriene AntagonistsBronchoconstrictor AgentsPrevalenceEosinophilsSkin TestsCitric AcidChronic DiseaseQuestionnairesBronchoconstrictionCodeineRespiratory HypersensitivityRespiratory Tract DiseasesStatus AsthmaticusAirway RemodelingAirway ObstructionExhalationRespiratory SystemAerosolsReflexOvalbuminAdrenergic beta-AgonistsRespiratory Tract InfectionsPulmonary MedicineCommon ColdAir Pollution, IndoorBronchoalveolar Lavage FluidExpectorantsDouble-Blind MethodCross-Sectional StudiesOccupational DiseasesPyroglyphidaeRisk FactorsBronchoscopyEosinophiliaGlucocorticoidsMucusEnvironmental ExposureAnti-Inflammatory AgentsAsthma, Aspirin-InducedAirway ResistanceTreatment OutcomeNedocromilBreath TestsPulmonary Disease, Chronic ObstructiveCromolyn SodiumAir PollutantsGastroesophageal RefluxTobacco Smoke PollutionBordetella pertussisDyspneaOccupational ExposureMitesAcute DiseaseProspective StudiesQuality of LifeCase-Control StudiesAndrostadienesSmokingNitrogen DioxideSinusitisPulmonary EosinophiliaEthanolaminesCohort StudiesBronchial SpasmSelf CareNasal DecongestantsLung Diseases, Obstructive