RT Journal Article
SR Electronic
T1 Tiotropium reduced exacerbations but not rate of FEV<sub>1</sub> decline in patients with COPD using other respiratory medications
JF Evidence Based Medicine
JO Evid Based Med
FD BMJ Publishing Group Ltd
SP 43
OP 43
DO 10.1136/ebm.14.2.43
VO 14
IS 2
YR 2009
UL http://ebm.bmj.com/content/14/2/43.abstract
AB