O'Donnell DE, Aaron S, Bourbeau J, et al. Executive Summary Canadian Thoracic Society Recommendations for Management of Chronic Obstructive Pulmonary Disease — 2003. Can Respir J 2003;10(Suppl A):11A-65A.
Price D, Freeman D, Kaplan A, et al. Progressive breathlessness in COPD — The role of hyperinflation and its pharmacological management. Primary Care Respiratory Journal 2005;14:285-93.
Fletcher C, Peto R. The natural history of chronic airflow obstruction. Br Med J 1977;1:1645-48.
O’Donnell DE, Hernandez P, Aaron S, et al. Canadian Thoracic Society COPD Guidelines: Summary of highlights for family doctors. Can Respir J 2003;10:183-85.
O’Donnell DE, Aaron S, Bourbeau J, et al.Canadian Thoracic Society Recommendations for Management of Chronic Obstructive Pulmonary Disease – 2007 Update. Can Respir J 2007;14(Suppl B):5B-32B.