1. U.S. Department of Health and Human Services. The Health Consequences of Smoking—50 Years of Progress. A Report of the Surgeon General. Atlanta: U.S. Department of Health and Human Services, Centers for Disease Control and Prevention, National Center for Chronic Disease Prevention and Health Promotion, Office on Smoking and Health; 2014.
2. Centers for Disease Control and Prevention. QuickStats: number of deaths from 10 leading causes—national vital statistics system, United States, 2010. Morbid Mortal Wkly Rep. 2013;62(08):155.
3. Pulmonary Predictors of Incident Diabetes in Smokers
4. A Simplified Score to Quantify Comorbidity in COPD
5. The predictability of claim-data-based comorbidity-adjusted models could be improved by using medication data