1[1]Koyanagi I, Iwasaki Y, Hida K, et al. Surgical treatment supposed natural history of the tethered cord with occult spinal dysraphism.Childs Nerv Syst, 1997, 13:268-274.
2[2]Pierre-Kahn A, Zerah M, Renier D, et al.Congenital lumbosacral lipomas. Childs Nerv Syst, 1997, 13:298-335.
3[3]Kirollos RW, Van Hille PT. Evaluation of surgery for the tethered cord syndrome using a new grading system. Br J Neurosurg, 1996,10:251-260.
4[4]Sakamoto H, Hakuba A, Fujitani K, et al.Surgical treatment of the retethered spinal cord after repair of lipomyelomeningocele. J Neurosurg, 1991, 74:709-714.