1Lagares A, Gomez PA, Alen JF, et al. A comparison of different grading scales for predicting outcome after subarachnoid haemorrhage [ J ]. Acta Neuroradiology, 2004 ; 147 ( 1 ) :5-16.
2Johansson M, Norback O, Gal G, et al. Clinical outcome after endovascular coil embolization in elderly patients with subarachnoid hemorrhage[ J]. Neuroradiology,2004 ;46(5 ) :385-91.
4Inagawa T,Trends in incidence and ease fatality rates of aneurysmal subarachnoid hemorrhage in hospital - and community-based study [ J]. J Neurosurg, 2002 ; 6 ( 3 ) : 497 -509.
5Watanabe A, Hirano K, kamada M, et al. Perimesencephalic nonaneurysmal subarachnoid hemorrhage and variation in therein [J]. Neuroradiology,2002 ;4 (4):1319-25.
6Van Gijn J, Van Dongen J, Vemenlen M, et al. Perimesencephalic hemorrhage :a nonaneurysmal and benign form of subarachnoid hemorrhage[ J ]. Neurology, 1985 ;5 (4) :493-7.