American Lung Association
www.lungusa.org

American Lung Association of Alabama
www.alabamalung.org

American College of Chest Physicians
www.chestjournal.org

American Thoracic Society
www.thoracic.org

Society of Critical Care Medicine
www.sccm.org

American College of Physicians
www.acponline.org

American Board of Internal Medicine
www.abim.org