- Lung Diseases: MedlinePlus
- Lung disease: MedlinePlus Medical Encyclopedia
- Lung Diseases - National Heart Lung and Blood Institute (NHLBI). Diseases and Conditions Index
- Pulmonology Articles (Diagnosis, Lung Function Testing, Treatment, Prognosis, Follow-up) – eMedicine - Academic collection of respiratory disease articles. Registration required.
- Lung Disease – American Lung Association - Comprehensive resource for lung diseases.
- Lung and Airway Disorders: Merck Manual Home Edition - Extensive general resource for breathing / lung disorders.
- Studies by Topic – ClinicalTrials.gov - Respiratory Tract Diseases
- The American College of Chest Physicians - Professional society with exceptional resources. Membership required for access to certain materials.
- American Thoracic Society – We help the world breathe – PULMONARY :: CRITICAL CARE :: SLEEP - Professional society with exceptional resources. Membership required for access to certain materials.
- European Respiratory Society | - Professional society with exceptional resources. Membership required for access to certain materials.
- American Association for Respiratory Care - Professional society with exceptional resources. Membership required for access to certain materials.
- #1 Respiratory Hospital in the U.S. – National Jewish Health - The global leader in respiratory diseases.
