1. National Heart, Lung & Blood Institute. National Asthma Education and Prevention Program Expert Panel Report II Guidelines for the Diagnosis and Management of Asthma. US Department of Health and Human Services. 1997, Publication 97-4051A
2. National Heart, Lung & Blood Institute. National Asthma Education and Prevention Program Expert Panel Report Guidelines for the Diagnosis and Management of Asthma—Update on Selected Topics 2002. US Department of Health and Human Services. 2002, Publication 02-5075