1. Endosonography Versus Mediastinoscopy in Mediastinal Staging of Lung Cancer: Systematic Review and Meta-Analysis 
Inderpaul Singh Sehgal, MD, DM, Sahajal Dhooria, MD, DM, Ashutosh Nath Aggarwal, MD, DM, Digambar Behera, MD, Ritesh Agarwal, MD, DM 
The Annals of Thoracic Surgery 
Volume 102, Issue 5, Pages (November 2016)
DOI: /j.athoracsur
Copyright © 2016 The Society of Thoracic Surgeons Terms and Conditions

2. Fig 1
Study selection process for the systematic review. (EBUS/EUS = endobronchial ultrasound/endoscopic ultrasound.)
The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur )
Copyright © 2016 The Society of Thoracic Surgeons Terms and Conditions

3. Fig 2
Forest plot of the risk difference of the diagnostic sensitivity comparing the endoscopic procedures with cervical mediastinoscopy in staging of mediastinal lymph nodes in non-small cell lung carcinoma. The risk difference of sensitivity of individual studies is represented by a square through which runs a horizontal line (95% confidence interval [CI]). The diamond represents the pooled effect size. (M-H = Mantel-Haenszel; RCTs = randomized controlled trials.)
The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur )
Copyright © 2016 The Society of Thoracic Surgeons Terms and Conditions

4. Fig 3
Funnel plot comparing diagnostic odds ratio versus the SE of RD. The circles and diamond represent individual studies included in the meta-analysis. The line in the center indicates the summary RD. (RCTs = randomized controlled trials; RD = risk difference.)
The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur )
Copyright © 2016 The Society of Thoracic Surgeons Terms and Conditions