1. Does anaesthesia with nitrous oxide affect mortality or cardiovascular morbidity? A systematic review with meta-analysis and trial sequential analysis 
G. Imberger, A. Orr, K. Thorlund, J. Wetterslev, P. Myles, A.M. Møller 
British Journal of Anaesthesia 
Volume 112, Issue 3, Pages (March 2014)
DOI: /bja/aet416
Copyright © 2014 The Author(s) Terms and Conditions

2. Fig 1
Study flow diagram.
British Journal of Anaesthesia  , DOI: ( /bja/aet416)
Copyright © 2014 The Author(s) Terms and Conditions

3. Fig 2 Forest plot for short-term mortality.
British Journal of Anaesthesia  , DOI: ( /bja/aet416)
Copyright © 2014 The Author(s) Terms and Conditions

4. Fig 3 Forest plot for long-term mortality.
British Journal of Anaesthesia  , DOI: ( /bja/aet416)
Copyright © 2014 The Author(s) Terms and Conditions

5. Fig 4
TSA for long-term mortality, testing for a relative risk reduction of 20%.
British Journal of Anaesthesia  , DOI: ( /bja/aet416)
Copyright © 2014 The Author(s) Terms and Conditions

6. Fig 5 Forest plot for stroke.
British Journal of Anaesthesia  , DOI: ( /bja/aet416)
Copyright © 2014 The Author(s) Terms and Conditions

7. Fig 6
Forest plot for MI.
British Journal of Anaesthesia  , DOI: ( /bja/aet416)
Copyright © 2014 The Author(s) Terms and Conditions