ANALYSES OF CLINICAL TRIALS SUPPORTING REDUCTIONS IN EXACERBATIONS OF COPD / respiratory disorders / pooled term pneumonia / EXACERBATIONS OF COPD / Pneumonia / OF COPD / Pulmonary / TIOTROPIUM HANDIHALER DEVELOPMENT FOR COPD / Stroke / COPD / Respiratory failure / AND RESPIRATORY FAILURE / COMPARATIVE STUDY IN PATIENTS WITH COPD / /