1. Emergency Physician Ultrasonography for Evaluating Patients at Risk for Ectopic Pregnancy: A Meta-Analysis 
John C. Stein, MD, Ralph Wang, MD, Naomi Adler, MD, John Boscardin, PhD, Vanessa L. Jacoby, MD, Gloria Won, BA, Ruth Goldstein, MD, Michael A. Kohn, MD 
Annals of Emergency Medicine 
Volume 56, Issue 6, Pages (December 2010)
DOI: /j.annemergmed
Copyright © 2010 American College of Emergency Physicians Terms and Conditions

2. Figure 1 Flow diagram for study selection.
Annals of Emergency Medicine  , DOI: ( /j.annemergmed )
Copyright © 2010 American College of Emergency Physicians Terms and Conditions

3. Figure 2
Sensitivity.
Annals of Emergency Medicine  , DOI: ( /j.annemergmed )
Copyright © 2010 American College of Emergency Physicians Terms and Conditions

4. Figure 3 Negative predictive value.
Annals of Emergency Medicine  , DOI: ( /j.annemergmed )
Copyright © 2010 American College of Emergency Physicians Terms and Conditions

5. Figure 4
Specificity.
Annals of Emergency Medicine  , DOI: ( /j.annemergmed )
Copyright © 2010 American College of Emergency Physicians Terms and Conditions

6. Figure 5 Positive predictive value.
Annals of Emergency Medicine  , DOI: ( /j.annemergmed )
Copyright © 2010 American College of Emergency Physicians Terms and Conditions

7. Figure 6
Summary receiver operating characteristic plot. The figure shows the summary curve, along with the point estimate and the 95% confidence region.
Annals of Emergency Medicine  , DOI: ( /j.annemergmed )
Copyright © 2010 American College of Emergency Physicians Terms and Conditions