4Takehara H, Yakabe S, Kameoka K. Laparoscopic perecutaneous extraperitoneal closure for inguinal hernia in children: clinical out- come of 972 repairs done in 3 pediatric surgical institutions [ J ]. J Pediatr Surg, 2006, 41 (12): 1999-2003.
5Ozgediz D,Roayaie K,Lee H, et al. Subcutaneous endoscopically assisted ligation(SEAL) of the internal ring for repair of inguinal hernias in children : report of a new technique and early results [ J ]. Surg Endosc, 2007, 21(8): 1327-1331.