1. Association between socio-psycho-behavioral factors and male semen quality: systematic review and meta-analyses 
Ying Li, Ph.D., Hui Lin, Ph.D., Yafei Li, Ph.D., Jia Cao, Ph.D. 
Fertility and Sterility 
Volume 95, Issue 1, Pages (January 2011)
DOI: /j.fertnstert
Copyright © 2011 American Society for Reproductive Medicine Terms and Conditions

2. Figure 1
Results of the article search and the outlining of the entire process of searching for articles for this systematic review and meta-analysis.
Fertility and Sterility  , DOI: ( /j.fertnstert )
Copyright © 2011 American Society for Reproductive Medicine Terms and Conditions

3. Figure 2
Mean differences (MDs) in the effects of smoking, stress, alcohol consumption, and age on semen quality. This figure shows the forest plots for the meta-analysis on the association between smoking, stress, alcohol drinking, older age, and semen quality.
Fertility and Sterility  , DOI: ( /j.fertnstert )
Copyright © 2011 American Society for Reproductive Medicine Terms and Conditions