1. 1. Bach PV, Najari BB, Goldstein M. Varicocele - a case for early intervention.F1000Res. 2016 Jul 22;5. pii: F1000 Faculty Rev-1792. 2. Kucuk EV, Bindayi A, Boylu U, Onol FF, Gumus E. Randomised clinical trial of comparing effects of acupuncture and varicocelectomy on sperm parameters in infertile varicocele patients.Andrologia. 2016 Jan 21. 3. Hosseinifar H1, Sabbaghian M, Nasrabadi D, Modarresi T, Dizaj AV, Gourabi H. Study of the effect of varicocelectomy on spermproteinsexpression in patients with varicocele and poorspermquality by using two-dimensionalgelelectrophoresis. J Assist Reprod Genet. 2014 Jun;31(6):725-9. 4. Shabana W, Teleb M, Dawod T, Elsayed E, Desoky E, Shahin A, Eladl M, et al. Predictors of improvement in semen parameters after varicocelectomy for male subfertility: A prospective study.Can Urol Assoc J. 2015 Sep-Oct;9(9-10):E579-82. 5. Yazdani M, Hadi M, Abbasi H, Nourimahdavi K, Khalighinejad P, Mirsattari A, Efficacy of Varicocele Repair in Different Age Groups.Urology. 2015 Aug;86(2):273-5. 6. Fukuda T, Miyake H, Enatsu N, Matsushita K, Fujisawa M. Assessment of Time-dependent Changes in Semen Parameters in Infertile Men After Microsurgical Varicocelectomy.Urology. 2015 Jul;86(1):48-51. 7. Tavalaee M, Bahreinian M, Barekat F, Abbasi H, Nasr-Esfahani MH. Effect of varicocelectomy on sperm functional characteristics and DNA methylation.Andrologia. 2015 Oct;47(8):904-9. D 8. Esteves SC, Miyaoka R, Roque M, Agarwal A. Outcome of varicocele repair in men with nonobstructive azoospermia: systematic review and meta-analysis.Asian J Androl. 2016 Mar-Apr;18(2):246-53. 9. Pajovic B, Radojevic N. Prospective follow up of fertility after adolescent laparoscopic varicocelectomy.Eur Rev Med Pharmacol Sci. 2013 Apr;17(8):1060-3. 10. Schauer I, Madersbacher S, Jost R, Hübner WA, Imhof M. The impact of varicocelectomy on sperm parameters: a meta-analysis.J Urol. 2012 May;187(5):1540-7. 11. Jorsaraei G, Aghajani Mir M, Hajian K, Asghari Zadeh Ganji M. Effects of varicocelectomy on sperm parameters and fertility rate. JBUMS. 2006; 8 (1) :40-45 12. Sohrabi M.B, Amini A, Zolfaghari P, Yahyaei E. Effect of varicocelectomy on spermatogram index. Journal of Knowledge & Health 2014;9(2):47-51. 13. Daitch JA, Bedaiwy MA, Pasqualotto EB, Hendin BN, Hallak J, Falcone T, Thomas AJ, Nelson DR, Agarwal A: Varicocelectomy improves intra uterine insemination success rates in men with varicocele. J Urol 2001, 165(5):1510-1513. 14. Onozawa M, Endo F, Suetomi T, Takeshima H, Akaza H: Clinical study of varicocele: statistical analysis and the results of long-term follow-up. Int J Urol 2002, 9(8):455-461. 15. Kibar Y, Seckin B, Erduran D: The effects of subinguinal varicocelectomy on Kruger morphology and semen parameters. J Urol 2002, 168(3):1071-1074. O'Brien J, Bowles B, Kamal KM, Jarvi K, Zini A: Does the gonadotropin-releasing hormone stimulation test predict clinical outcomes after microsurgical varicocelectomy? Urology 2004, 63(6):1143-1147