1. Carbon dioxide versus normal saline as distension medium for diagnostic hysteroscopy: a systematic review and meta-analysis of randomized controlled trials 
Laurentiu Craciunas, Muhammad Shafique Sajid, M.B.B.S., M.B.A., M.Sc., M.D., Rosemary Howell, M.B.B.S., M.D., M.Ed. 
Fertility and Sterility 
Volume 100, Issue 6, Pages e4 (December 2013)
DOI: /j.fertnstert
Copyright © 2013 American Society for Reproductive Medicine Terms and Conditions

2. Figure 1 Quorum diagram showing trial selection methodology.
Fertility and Sterility  , e4DOI: ( /j.fertnstert )
Copyright © 2013 American Society for Reproductive Medicine Terms and Conditions

3. Figure 2
(A) Forest plot showing the visual analog scale (VAS) for procedural pain for women undergoing diagnostic hysteroscopy. Standardized mean difference (SMD) is shown with 95% confidence interval (CI). (B) Forest plot showing the incidence of shoulder pain in women undergoing diagnostic hysteroscopy. Risk ratio (RR) is shown with 95% CI. (C) Forest plot showing the incidence of side effects in women undergoing diagnostic hysteroscopy. RR is shown with 95% CI. (D) Forest plot showing the satisfaction expressed as VAS for women undergoing diagnostic hysteroscopy. SMD is shown with 95% CI. (E) Forest plot showing the satisfaction expressed as acceptance of the same procedure for women undergoing diagnostic hysteroscopy. RR is shown with 95% CI. (F) Forest plot showing the quality of view expressed as incidence of unsatisfactory view in women undergoing diagnostic hysteroscopy. RR is shown with 95% CI. (G) Forest plot showing the duration of procedure in women undergoing diagnostic hysteroscopy. SMD is shown with 95% CI. NS = normal saline.
Fertility and Sterility  , e4DOI: ( /j.fertnstert )
Copyright © 2013 American Society for Reproductive Medicine Terms and Conditions

4. Supplemental Figure 1
Summary and strength of the evidence from trials analyzed with the use of Gradepro software.
Fertility and Sterility  , e4DOI: ( /j.fertnstert )
Copyright © 2013 American Society for Reproductive Medicine Terms and Conditions