1. Burger P, Scheithauer BW, Vogel S (1991) Brain tumors. Surgical pathology of the nervous system and its coverings. Churchill Livingstone, New York, pp 193–209
2. Cohadon F, Aouad N, Rougier A, Vital C, Rivel J, Dartigues JF (1985) Histologic and non-histologic factors correlated with survival time in supratentorial astrocytic tumors. J Neurooncol 3:105–111
3. McCormack BM, Miller DC, Budzilovich GN, Voorhees GJ, Ransohoff J (1992) Treatment and survival of low-grade astroctomas in adults—1977–1988. Neurosurgery 31:636–642
4. Blankenburg FG, Teplitz RL, Ellis W et al (1995) The influence of volumetric tumor doubling time, DNA ploidy, and histologic grade on the survival of patients with intracranial astrocytomas. Am J Neuroradiol 16:1001–1012
5. Rees JH, Benton C, Watt H et al (2003) Precise volume measurements of low-grade gliomas. Some surprising findings. Proc Assoc Br Neurol:37