1. Prevalence of Pulmonary Embolism in Acute Exacerbations of COPD
Jacques Rizkallah, MD, S.F. Paul Man, MD, FCCP, Don D. Sin, MD, FCCP 
CHEST 
Volume 135, Issue 3, Pages (March 2009)
DOI: /chest
Copyright © 2009 The American College of Chest Physicians Terms and Conditions

2. Figure 1 Flow diagram of study selection.
CHEST  , DOI: ( /chest )
Copyright © 2009 The American College of Chest Physicians Terms and Conditions

3. Figure 2
The prevalence of PE across different sites. The filled circles represent the mean, and the line bars represent SE; p value for overall = 0.014; p value for emergency department (ER) is not calculable because there was only one study; p value for studies that evaluated inpatients and outpatients = 0.133; p value for studies that evaluated only hospitalized patients =
CHEST  , DOI: ( /chest )
Copyright © 2009 The American College of Chest Physicians Terms and Conditions