- www.lungusa.org -- The American Lung Association
- www.acaai.org -- American College of Allergy, Asthma & Immunology
- www.aaaai.org -- American Academy of Allergy, Asthma & Immunology
- www.nhlbi.nih.gov -- National Heart, Lung, and Blood Institute
- www.aafa.org -- Asthma and Allergy Foundation of America
Review Date: 05/03/2011
Reviewed By: Harvey Simon, MD, Editor-in-Chief, Associate Professor of Medicine, Harvard Medical School; Physician, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.