Certification and licensing
- American Board of Internal Medicine (ABIM)
- ABIM Policies and Procedures
- United States Medical Licensing Examination (USMLE)
- National Board of Medical Examiners (NBME)
- Graduate Medical Education (GME) Consortium of Washington University, Barnes-Jewish Hospital and St. Louis Children’s Hospital
- Accreditation Council for Graduate Medical Education (ACGME)
Foundations, patient support groups, and consumer info
- Alpha-1
- American Lung Association
- Cystic Fibrosis Foundation
- Pulmonary Hypertension Association
- National Foundation for Transplants
- Sarcoidosis Online
Professional societies
- American College of Physicians
- American College of Chest Physicians
- American Thoracic Society
- Society of Critical Care Medicine
- International Society for Heart and Lung Transplantation
- American Academy of Sleep Medicine
Research organizations
- American Lung Association
- American Cancer Society
- Centers for Disease Control and Prevention (CDC)
- National Institutes of Health
- National Heart and Blood Institute