Observational Study on the Impact of Initiating Tiotropium Alone Versus Tiotropium with Fluticasone Propionate/Salmeterol Combination Therapy on Outcomes and Costs in Chronic Obstructive Pulmonary Disease
Observational Study on the Impact of Initiating Tiotropium Alone Versus Tiotropium with Fluticasone Propionate/Salmeterol Combination Therapy on Outcomes and Costs in Chronic Obstructive Pulmonary Disease