1. Shapiro SD, Snider GL, Rennard SI. Murray JF, Nadal JA, editors. Chronic bronchitis and emphysema. Textbook of Respiratory Medicine. 2005. 4th ed. Philadelphia: WB Saunders;1115–1125.
Article
4. Reilly J, Silverman EK, Shapiro SD. Braunwald E, Fauci AS, Kasper D, Hauser SL, Longo DL, Jameson JL, editors. Chronic Obstructive Pulmonary Disease. Harrison's Principles of Internal Medicine. 2005. 16th ed. New York: McGraw-Hil;1147–1150.
5. Anthonisen N. Goldman L, Bennett JC, editors. Chronic Obstructive Pulmonary Disease. Cecil textbook of medicine. 2005. 22nd ed. Philadelphia: WB Saunders;509–515.
6. American Thoracic Society. Standards for the diagnosis and care of patients with chronic obstructive pulmonary disease. Am J Respir Crit Care Med. 1995. 152:S77–S121.
7. Celli BR, MacNee W. Standards for the diagnosis and treatment of patients with COPD: a summary of the ATS/ERS position paper. Eur Respir J. 2004. 23:932–946.
Article
8. Kanner RE, Connett JE, Williams DE, Buist AS. Effects of randomized assignment to a smoking cessation intervention and changes in smoking habits on respiratory symptoms in smokers with early chronic obstructive pulmonary disease: the Lung Health Study. Am J Med. 1999. 106:410–416.
Article
9. Badgett RG, Tanaka DJ, Hunt DK, Jelley MJ, Feinberg LE, Petty TL, et al. Can moderate chronic obstructive pulmonary disease be diagnosed by historical and physical findings alone? Am J Med. 1993. 94:188–196.
Article
10. Global Initiative for Chronic Obstructive Lung Disease. Global Strategy for the Diagnosis, Management and Prevention of Chronic Obstructive Lung Disease. NHLBI/WHO workshop report. 2001. 04. Date updated: 1 July 2003. Bethesda: National Heart, Lung and Blood Institute;Updte of the Management Sections, GOLD website
www.goldcopd.com.