1. Use of testicular versus ejaculated sperm for intracytoplasmic sperm injection among men with cryptozoospermia: a meta-analysis 
Nikita Abhyankar, M.B.ChB., Martin Kathrins, M.D., Craig Niederberger, M.D. 
Fertility and Sterility 
Volume 105, Issue 6, Pages e1 (June 2016)
DOI: /j.fertnstert
Copyright © 2016 American Society for Reproductive Medicine Terms and Conditions

2. Figure 1
Flow chart to demonstrate study selection process. *Irrelevant cohorts are studies that do not compare groups of men with cryptozoospermia in which both ejaculated and testicular sperm were used in separate intracytoplasmic sperm injection (ICSI) cycles.
Fertility and Sterility  , e1DOI: ( /j.fertnstert )
Copyright © 2016 American Society for Reproductive Medicine Terms and Conditions

3. Figure 2
Forest plot demonstrating relative risk for pregnancy rates (PRs) with intracytoplasmic sperm injection (ICSI) when using testicular or ejaculated sperm from men with cryptozoospermia.
Fertility and Sterility  , e1DOI: ( /j.fertnstert )
Copyright © 2016 American Society for Reproductive Medicine Terms and Conditions

4. Figure 3
Forest plot demonstrating relative risk for fertilization rates with intracytoplasmic sperm injection (ICSI) when using testicular or ejaculated sperm from men with cryptozoospermia.
Fertility and Sterility  , e1DOI: ( /j.fertnstert )
Copyright © 2016 American Society for Reproductive Medicine Terms and Conditions

5. Supplemental Figure 1
Funnel plot of studies used for analyzing pregnancy rate (PR) and fertilization rate with intracytoplasmic sperm injection (ICSI) when using testicular or ejaculated sperm from men with cryptozoospermia. Funnel plots demonstrating heterogeneity in the PR analysis with study “2” as a potentially outlying study. Fertilization rate funnel plot shows symmetry suggesting limited bias. RR = relative risk.
Fertility and Sterility  , e1DOI: ( /j.fertnstert )
Copyright © 2016 American Society for Reproductive Medicine Terms and Conditions