1. Impact of CAG repeat length in the androgen receptor gene on male infertility – a meta- analysis 
Feifan Xiao, Aihua Lan, Zhidi Lin, Jianfei Song, Yuening Zhang, Jiatong Li, Kailong Gu, Baihao Lv, Dong Zhao, Siping Zeng, Ruoheng Zhang, Wei Zhao, Zhengyan Pan, Xiaozhen Deng, Xiaoli Yang 
Reproductive BioMedicine Online 
Volume 33, Issue 1, Pages (July 2016)
DOI: /j.rbmo
Copyright © 2016 Reproductive Healthcare Ltd. Terms and Conditions

2. Figure 1
Flow chart showing the selection process for the included studies.
Reproductive BioMedicine Online  , 39-49DOI: ( /j.rbmo )
Copyright © 2016 Reproductive Healthcare Ltd. Terms and Conditions

3. Figure 2
Forest plot of the relationship between CAG repeat length and male infertility.
Reproductive BioMedicine Online  , 39-49DOI: ( /j.rbmo )
Copyright © 2016 Reproductive Healthcare Ltd. Terms and Conditions

4. Figure 3
Forest plot of the odds ratios (OR) for the risk of infertility for a cut-off of ≤21 or >21 CAG repeats.
Reproductive BioMedicine Online  , 39-49DOI: ( /j.rbmo )
Copyright © 2016 Reproductive Healthcare Ltd. Terms and Conditions

5. Figure 4
(A) Begg's funnel plot for the publication bias test in the overall analysis. (B). Begg's funnel plot for the publication bias test for the studies included in the Forest plot shown in Figure 3.
Reproductive BioMedicine Online  , 39-49DOI: ( /j.rbmo )
Copyright © 2016 Reproductive Healthcare Ltd. Terms and Conditions

6. Figure 5
(A) Forest plot of the relationship between CAG repeat length and male infertility after one study (Khatami et al., 2015) was excluded. (B) Begg's funnel plot for the publication bias after one study was excluded (Khatami et al., 2015).
Reproductive BioMedicine Online  , 39-49DOI: ( /j.rbmo )
Copyright © 2016 Reproductive Healthcare Ltd. Terms and Conditions