Gerard J. Criner, MD, Director/Professor of Medicine, Division of Pulmonary and Critical Care Medicine, Temple University School of Medicine, discusses research using combination therapy for treatment of chronic obstructive pulmonary disease.

References and Resources
Aaron S, Vandemheen K, Fergusson D, et al. Tiotropium in Combination with Placebo, Salmeterol, or Fluticasone–Salmeterol for Treatment of Chronic Obstructive Pulmonary Disease. Ann Intern Med. 17 April 2007;Vol 146: Issue 8: Pages 545-555.
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Chronic Obstructive Pulmonary Disease (COPD) Fact Sheet
American Lung Association
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COPD Foundation
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