Comprehensive information about asthma, the chronic disease which affects one's lung airways.
www.nlm.nih.gov/medlineplus/asthma.html
Find information about asthma, including causes, symptoms, prevention, medications, and other asthma treatments.
www.mayoclinic.com/health/asthma/DS00021
User-created article on the causes and symptoms of asthma in adults and children.
en.wikipedia.org/wiki/Asthma