Trends in Asthma Mortality, September 2012
American Lung Association
http://www.lungusa.org/finding-cures/our-research/trend-reports/asthma-trend-report.pdf

Asthma Prevalence, Health Care Use, and Mortality: United States,
2005-2009
National Health Statistics Reports; No. 32.
National Center for Health Statistics. 2011
http://www.cdc.gov/nchs/data/nhsr/nhsr032.pdf

National Surveillance for Asthma: United States, 12001-2010,
Vital and Health Statistics; Series 3, Number 35. November 2012
http://www.cdc.gov/nchs/data/series/sr_03/sr03_035.pdf

CDC Health Disparities and Inequalities Report - United States, 2011: Current Asthma Prevalence - United States, 2006-2008
Centers for Disease Control and Prevention. Morbidity and Mortality Weekly Report 2011;60(Suppl):84-86.
http://www.cdc.gov/mmwr/pdf/other/su6001.pdf

Morbidity and Mortality: 2012 Chart Book on Cardiovascular, Lung and Blood Diseases, February 2012
National Heart, Lung and Blood Institute
http://www.nhlbi.nih.gov/resources/docs/2012_ChartBook.pdf