2Connolly ES Jr,Rabinstein AA, Carhuoma JR, et al. Guidelinesfor the management of aneurismal subarachnoid hemorrha: aguideline for healthcare professionals from the American HeartAssociation/American Stroke Association. Stroke, 2012, 43: 1711-1737.
3Brainin M, Barnes M,Baron JC, et al. Guidance for the prepara-tion of neurological manament guidelines by EFNS scientific taskforces—revised recommendations 2004. Eur J Neurol, 2004, 11:577-581.
4Hunt WE, Hess RM. Surgical risk as related to time of interven-tion in the repair of intracranial aneurysms. J Neurosurg, 1968, 28:14-20.
5Lindsay KW, Teasdale G, Knill-Jones RP, et al. Obsover variabilityin g-ading patients with subarachnoid hemorrha. J Neurosurg, 1982,56: 628-633.
6World Federation of Neurological Surgpons Committee. Report ofWorld Federation of Neurological Surons Committee on aUniversal Subarachnoid Hemorrha Grading Scale. J Neurosurg,1988,68:985-986.
7Oshiro EM, Walter KA, Piantadosi S, et al. A new subarachnoidhemorrha grading system based on the Glasgow Coma Scale: aconq)arison with the Hunt and Hess and World Federation ofNeurological Surgpons Scales in a clinical series. Neurosurgpry,1997,41: 140-148.
8Takagi K, Tamura A, NakagMni T, et al. How should a subarachnoidhemorrhagp gding scale be dermined. A combinatorial qjproachbased solely on the Glasgow Coma Scale. J Neurosurg, 1999,90:680-687.
9van Heuven AW, Dorhout Mees SM, Alga A, et al. Validation ofa prognostic subarachnoid hemorrhage g-ading scale derived directlyfrom the Glasgow Coma Scale. Stroke, 2008, 39: 1347-1348.
10de Rooij NK, Linn FH, van der Plas JA, et al. Incidence ofsubarachnoid haemorrha: a systematic review with enphasis onregion, agp, and time trends. J Neurol Neurosurg Psychiatry,2007,78: 1365-1372.
