Mayo Clinic: Lung Volume Reduction Surgery - Offers an overview of the surgery used to relieve the symptoms of severe emphysema plus information about receiving treatment from the Mayo Clinic.
MedlinePlus: Emphysema - Offers links to articles on the condition, its symptoms, treatment, and long-term management.
Wikipedia: Emphysema - Hyperlinked article on the chronic lung disease. Includes notes on symptoms and treatment.