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SpirometryAirForced Expiratory VolumeVital CapacityRespiratory Function TestsAir PollutantsAir PollutionPulmonary Disease, Chronic ObstructiveAsthmaBronchodilator AgentsAir MicrobiologyEmbolism, AirLungAirway ObstructionLung Diseases, ObstructiveLung DiseasesAir Pollution, IndoorMaximal Midexpiratory Flow RateAir MovementsReproducibility of ResultsForced Expiratory Flow RatesRespiratory Tract DiseasesAir Pollutants, OccupationalQuestionnairesCross-Sectional StudiesSeverity of Illness IndexDyspneaRespiration DisordersSmokingPeak Expiratory Flow RateAirway ResistancePulmonary MedicineOscillometryBronchial Provocation TestsOccupational ExposureTime FactorsBronchospirometryExhalationAir SacsLung Volume MeasurementsMaximal Expiratory Flow RateReference ValuesDustPlethysmography, Whole BodyAir ConditioningBreath TestsRespiratory SoundsOccupational DiseasesAdministration, InhalationPulmonary Diffusing CapacityRespiratory TherapyPrimary Health CareProspective StudiesBreathing ExercisesPulmonary VentilationCoughMethacholine ChlorideEnvironmental MonitoringAlbuterolSensitivity and SpecificityRespiratory Physiological PhenomenaTreatment OutcomePlethysmographyPulmonary EmphysemaParticulate MatterPrevalenceTotal Lung CapacityRespiratory MechanicsRisk FactorsResidual VolumePredictive Value of TestsBronchial HyperreactivityEnvironmental ExposureQuality of LifeBronchoconstrictor AgentsCohort StudiesPulmonary AtelectasisAge FactorsBronchitisMaximal Expiratory Flow-Volume CurvesRegression AnalysisOzoneNitrogen DioxideRespiratory MusclesPractice Guidelines as TopicAnalysis of VarianceCystic FibrosisAsthma, OccupationalFollow-Up StudiesAir IonizationSkin TestsLinear ModelsDouble-Blind MethodPhysician's Practice PatternsAir BagsRetrospective StudiesCross-Over StudiesAnti-Asthmatic AgentsEducation, Nursing, ContinuingLongitudinal Studies