Food-Processing IndustryFlourWeldingSkin TestsOccupational DiseasesOccupational ExposureRespiration DisordersRespiratory Tract DiseasesExercise TestExercise TherapyRespiratory SoundsCoughExerciseExercise ToleranceDustAsthmaRespiratory Function TestsBronchitisForced Expiratory VolumePhysical ExertionSpirometryVital CapacityDyspneaRespiratory HypersensitivityAgricultural Workers' DiseasesAir Pollutants, OccupationalPrevalenceAir Pollution, IndoorInhalation ExposureQuestionnairesBronchitis, ChronicSmokingBarberingOxygen ConsumptionByssinosisCross-Sectional StudiesHypersensitivity, ImmediateTextile IndustryRhinitisPhysical EnduranceLung DiseasesPeak Expiratory Flow RateBronchial Provocation TestsTime FactorsMaximal Midexpiratory Flow RateMuscle, SkeletalPulmonary Disease, Chronic ObstructiveAir PollutionConstruction MaterialsLungBronchial HyperreactivityEnvironmental ExposureLung Diseases, ObstructiveAir PollutantsRespiratory Tract InfectionsWoodTobacco Smoke PollutionRisk FactorsChronic DiseaseNitrogen DioxideSymptom AssessmentMethacholine ChlorideProspective StudiesSeverity of Illness IndexHeart RateCyanatesEpidemiological MonitoringFollow-Up StudiesTreatment OutcomeSeptember 11 Terrorist AttacksHealthy Worker EffectBicyclingMetallurgyAsthma, Exercise-InducedRadioallergosorbent TestIndustryCohort StudiesForced Expiratory Flow RatesRestAsthma, OccupationalCookingPhysical FitnessPneumoconiosisQuality of LifeLogistic ModelsImmunoglobulin EResistance TrainingAirway ObstructionIndustrial OilsCotton FiberGastroesophageal RefluxHousingToluene 2,4-DiisocyanateRunningMuscle Stretching ExercisesBronchodilator AgentsLongitudinal StudiesAnaerobic ThresholdHealth SurveysHypersensitivity