The Lancet · 2009 · 816 citations · 25 references
MedicineClinical SciencesPharmacotherapyPulmonologyAirway ObstructionChronic Obstructive Pulmonary DiseaseChronic Obstructive Pulmonary Disease PharmacotherapyObstructive Lung DiseaseRespiratory DiseaseChronic Obstructive Pulmonary Disease BronchodilationChronic Obstructive Pulmonary Disease PathophysiologyComparative Clinical TrialsCopd Symptom Management
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Klaus F. Rabe · American Journal of Respiratory and Critical Care Medicine · 2007 · 2.6K citations
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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