1. CDC - Asthma - Table 4-1 Current Asthma Prevalence Percents by Age;Centers for Disease Control and Prevention,2016
2. Respiratory Diseases;Healthy People 2020,2018
3. The economic burden of asthma in the United States, 2008–2013;Nurmagambetov;Annals of the American Thoracic Society,2018
4. CDC - Asthma - Most Recent Asthma Data;Centers for Disease Control and Prevention,2017
5. Medication adherence and the risk of severe asthma exacerbations: a systematic review;Engelkes;Eur. Respir. J.,2015