Predictors and outcomes of intraprocedural rupture in patients treated for ruptured intracranial aneurysms: the CARAT study - Elijovich, L; Higashida, R T; Lawton, M T; Duckwiler, G; Giannotta, S; Johnston, S C; Cerebral Aneurysm Rerupture After Treatment (CARAT) Investigators (Stroke, 2008)