Thorax · 2011 · 66 citations · 27 references
The EXACTLE study was registered in ClinicalTrials.gov as 'Antitrypsin (AAT) to Treat Emphysema in AAT-Deficient Patients'; ClinicalTrials.gov Identifier: NCT00263887.
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A 4-Year Trial of Tiotropium in Chronic Obstructive Pulmonary Disease
Donald P. Tashkin, Bartolomé R. Celli, Stephen Senn et al. · New England Journal of Medicine · 2008 · 2.2K citations · Full text