1.Barthold JS., Gonzalez R. The epidemiology of congenital cryptorchidism, testicular ascent and orchiopexy. J Urol. 2003. 170:2396–401.
Article
2.Yücesan S., Dindar H., Olcay I., Okur H., Kilicaslan S., Ergören Y, et al. Prevalence of congenital abnormalities in Turkish school children. Eur J Epidemiol. 1993. 9:373–80.
Article
3.Virtanen HE., Toppari J. Epidemiology and pathogenesis of cryptorchidism. Hum Reprod Update. 2008. 14:49–58.
Article
4.Kumanov P., Robeva RN., Tomova A. Adolescent varicocele: Who is at risk? Pediatrics. 2008. 121:e53–7.
Article
5.Gwak DH., Kim BH., Park SW. Prevalence of varicoceles in children and adolescents in Namhae-gun. Korean J Urol. 2001. 42:967–70.
6.Park JW., Kim KS. Incidence, risk factors and spontaneous descent of cryptorchidism. Korean J Urol. 2003. 44:1203–7.
7.Depue RH. Maternal and gestational factors affecting the risk of cryptorchidism and inguinal hernia. Int J Epidemiol. 1984. 13:311–8.
Article
8.Fernandez MF., Olmos B., Granada A., Lopez-Espinosa MJ., Molina-Molina JM., Fernandez JM, et al. Human exposure to endocrine-disrupting chemicals and prenatal risk factors for cryptorchidism and hypospadias: a nested case-control study. Environ Health Perspect. 2007. 115(Suppl 1):8–14.
Article
9.Inan M., Aydiner CY., Tokuc B., Aksu B., Ayhan S., Ayvaz S, et al. Prevalence of cryptorchidism, retractile testis and orchiopexy in school children. Urol Int. 2008. 80:166–71.
Article
10.Lee JH., Han JJ., Song SY., Park KH. Histological changes of the cryptorchid testis according to the age. Korean J Urol. 2002. 43:631–7.
11.Murphy F., Paran TS., Puri P. Orchiopexy and its impact on fertility. Pediatr Surg Int. 2007. 23:625–32.
12.Lim HS., Kim HT., Moon KH. Five year follow-up testicular growth results after orchiopexy in palpable cryptorchid testis. Korean J Urol. 2008. 49:271–6.
Article
13.Gorelick JI., Goldstein M. Loss of fertility in men with varicocele. Fertil Steril. 1993. 59:613–6.
14.Kass EJ., Belman AB. Reversal of testicular growth failure by varicocele ligation. J Urol. 1987. 137:475–6.
Article
15.Steeno O., Knops J., Declerck L., Adimoelja A., van de Voorde H. Prevention of fertility disorders by detection and treatment of varicocele at school and college age. Andrologia. 1976. 8:47–53.
Article
16.Hudson RW., Perez-Marrero RA., Crawford VA., McKay DE. Hormonal parameters of men with varicoceles before and after varicocelectomy. Fertil Steril. 1985. 43:905–10.
17.Harrison RM., Lewis RW., Roberts JA. Pathology of varicocele in nonhuman primates: long-term seminal and testicular changes. Fertil Steril. 1986. 46:500–10.
18.World Health Organization. The influence of varicocele on parameters of fertility in a large group of men presenting to infertility clinics. Fertil Steril. 1992. 57:1289–93.
19.Kass EJ., Reitelman C. Adolescent varicocele. Urol Clin North Am. 1995. 22:151–9.
Article
20.Shin JW., Kim SW., Paick JS. Effects of vericocele treatments in adolescents: changes of semen parameters after early varicocelectomy. Korean J Urol. 2005. 46:481–6.
21.Kim DH., Ku JH., Lee NK. Epidemiologic study about inguinal hernia and hydrocele performed in young men in Daejeon City and Chung-nam area. Korean J Urol. 2002. 43:781–5.