Respiration · 2013 · 62 citations · 7 references
Patients with more prominent respiratory symptoms in the first 30 days following BTVA experience greater efficacy. The clinical manifestations of the LIR are predictive of long-term clinical benefits.
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A Randomized Study of Endobronchial Valves for Advanced Emphysema
Frank C. Sciurba, Armin Ernst, Felix Herth et al. · New England Journal of Medicine · 2010 · 838 citations · Full text