Chronic Obstructive Pulmonary Disease (COPD): References

Centers for Disease Control and Prevention. Chronic obstructive pulmonary disease (COPD). http://www.cdc.gov/copd/. Updated March 12, 2015. Accessed March 2016.

Broaddus VC, Mason RJ, Ernst JD, et al. (2015). Murray and Nadel's textbook of respiratory medicine [6th ed.]. Elsevier.

US Department of Health & Human Services. National Institutes of Health. National Heart, Lung, and Blood Institute. What is COPD? http://www.nhlbi.nih.gov/health/dci/Diseases/Copd/Copd_WhatIs.html. Updated July 31, 2013. Accessed March 2016.

US Department of Health & Human Services. Agency for Healthcare Research and Quality. National and regional estimates on hospital use for all patients from the HCUP nationwide inpatient sample. 2012. http://hcupnet.ahrq.gov/HCUPnet.jsp. Accessed July 22, 2014.