1. AGREE Next Steps Consortium (2009) The AGREE II Instrument [Electronic version]. Available: http://www.agreetrust.org . Accessed 1 Jan 2011
2. Alberta Provincial CNS Tumour Team (2012) Glioblastoma. Edmonton (Alberta): Alberta Health Services, Cancer Care. (Clinical practice guideline; no. CNS-001 version 3)
3. Alonso-Coello P, Irfan A, Solà I, Gich I, Delgado-Noguera M, Rigau D, Tort S, Bonfill X, Burgers J, Schunemann H (2010) The quality of clinical practice guidelines over the last two decades: a systematic review of guideline appraisal studies. Qual Saf Health Care 19(6):e58. doi: 10.1136/qshc.2010.042077
4. Australian Cancer Network (2009) Adult Brain Tumour Guidelines Working Party. Clinical practice guidelines for the management of adult gliomas: astrocytomas and oligodendrogliomas. Cancer Council Australia, Australian Cancer Network and Clinical Oncological Society of Australia Inc., Sydney
5. Australian Institute of Health and Welfare and Australasian Association of Cancer Registries (2004) Cancer in Australia 2001. AIHW, Canberra