Guidelines for the management of aneurysmal subarachnoid hemorrhage. A statement for healthcare professionals from a special writing group of the Stroke Council of the American Heart Association - Mayberg, MR; Batjer, HH; Dacey, R; Diringer, M; Haley, EC; Heros, RC; Sternau, LL; Torner, J; Adams, HP; Feinberg, W; Thies, W (Stroke, 1994)