
"What Is Asthma?", National Heart, Lung and Blood Institute
Asthma Information, American Lung Association
National Institute of Allergy and Infectious Diseases
"Asthma: Questions To Ask When It Doesn't Get Better", American Academy of Family Physicians
"Asthma: Taking Medicines Safely", American Academy of Family Physicians
"Metered-Dose Inhaler: How To Use It Correctly", American Academy of Family Physicians
Atlas of the Human Body, American Medical Association