3Sneed PK, Prados MD, Medermot MW , et al. Large effect of age on survival of patients with glioblastoma treated between 1977 and 1989 [ J ]. Int J Radiat Oncol Bios Phys, 2005,36 : 898 - 904.
4Scharfen CO, Sneed PK,Wara WM,et al. High activity ^125I in- terstitial implant for gliomas[ J]. Int J Int J Ratiat Oncol Phys, 2002,24 : 583 - 59 l.