Original Research

Comparative effectiveness of budesonide/formoterol combination and tiotropium bromide among COPD patients new to these controller treatments

Trudo F, Kern DM, Davis JR, Tunceli O, Zhou S, Graham EL, Strange C, Williams SA

International Journal of Chronic Obstructive Pulmonary Disease 2015, 10:2055-2066

Published Date: 28 September 2015