Tashkin, D P Long-term efficacy of tiotropium in relation to smoking status in the UPLIFT trial. [electronic resource] - The European respiratory journal Feb 2010 - 287-94 p. digital Publication Type: Clinical Trial; Journal Article; Randomized Controlled Trial ISSN: 1399-3003 Standard No.: 10.1183/09031936.00082909 doi Subjects--Topical Terms: AgedBronchodilator Agents--therapeutic useCholinergic Antagonists--pharmacologyFemaleForced Expiratory VolumeHumansMaleMiddle AgedPlacebosPulmonary Disease, Chronic Obstructive--therapyQuality of LifeScopolamine Derivatives--therapeutic useSmokingTime FactorsTiotropium BromideTreatment Outcome