1. Centers for Medicare and Medicaid Services, Medicare Drug Spending Dashboard 2015. Office of Enterprise Data & Analytics (OEDA), 2016. https://www.cms.gov/Research-Statistics-Data-and-Systems/Statistics-Trends-and-Reports/Information-on-Prescription-Drugs/index.html. Accessed July 19, 2017.
2. National Asthma, Education, and Prevention Program, Expert Panel Report 3 (EPR-3): Guidelines for the diagnosis and management of asthma—summary report 2007;J Allergy Clin Immunol,2007
3. Effect of budesonide/formoterol pMDI on COPD exacerbations: a double-blind, randomized study;Sharafkhaneh;Respir Med,2012
4. Oral and inhaled corticosteroids and adrenal insufficiency: a case-control study;Mortimer;Thorax,2006
5. An assessment of the systemic activity of single doses of inhaled fluticasone propionate in healthy volunteers;Grahnen;Br J Clin Pharmacol,1994