Nasal MucosaRespiratory MucosaAdenoidsMucous MembraneOlfactory MucosaMucociliary ClearanceRespiratory SystemMicroscopy, Electron, ScanningBacterial AdhesionAdministration, IntranasalHaemophilus influenzaeOrgan Culture TechniquesIntestinal MucosaGastric MucosaPulmonary Disease, Chronic ObstructiveMouth MucosaForced Expiratory VolumeSpirometryBronchodilator AgentsLung Diseases, ObstructiveDyspneaRespiratory Function TestsVital CapacityScopolamine DerivativesColonLaryngeal MucosaSmokingSeverity of Illness IndexLungAdministration, InhalationExercise TolerancePulmonary EmphysemaCholinergic AntagonistsDuodenumPulmonary MedicineSputumRespiratory System AgentsIntestine, SmallGastritisAdrenergic beta-2 Receptor AgonistsAlbuterolAdrenal Cortex HormonesBronchitis, ChronicOxygen Inhalation TherapyCase-Control StudiesBronchiQuality of LifeInspiratory CapacityEmphysemaStomach UlcerAsthmaIleumBiopsy