1. Genital abnormalities and groin hernias in elementary-school children in Aqaba;al-Abbadi;East Mediterr Health J,2000
2. Prevalence of congenital abnormalities in Turkish school children;Yucesan;Eur J Epidemiol,1993
3. The undescended testicle;Palmer;Endocrinol Metab Clin North Am,1991
4. The retractile testis;Goh;J Paediatr Child Health,1993
5. Undescended testis, torsion and varicocele;Hutson,1998