3. eMedicine - Chronic Obstructive Pulmonary Disease and Emphysema : Article by Paul Kleinschmidt, MD
Most of the time COPD is secondary to tobacco abuse, although cystic fibrosis, alpha-1 antitrypsin deficiency, bronchiectasis, and some rare forms of bullous lung diseases may be causes. Most of the time COPD is secondary to tobacco abuse,...
http://www.emedicine.com/emerg/topic99.htm

4. Best Dx/Best Rx: Chronic Obstructive Diseases of the Lung and Acute Bronchitis -- Q-notes For Adu...
Bullous lung disease. Chronic Obstructive Diseases of the Lung and Acute Bronchitis. Physical training increases exercise capacity even in patients with advanced disease. Hyperinflated lung fields. Total lung capacity normal or increased.
http://enotes.tripod.com/copd.htm

5. Giant Bullous Emphysema -- Ctsnet: The Cardiothoracic Surgery...
Classification of cystic and bullous lung disease. Bullous disease may also be associated with a complete destruction of the underlying lung and irreversible respiratory failure; in these cases only lung transplantation can be considered if the...
http://www.ctsnet.org/sections/clinicalresources/thoracic/expert_tech-11.html