Stroke magnetic resonance imaging is accurate in hyperacute intracerebral hemorrhage: a multicenter study on the validity of stroke imaging - Fiebach, JB; Schellinger, PD; Gass, A; Kucinski, T; Siebler, M; Villringer, A; Olkers, P; Hirsch, JG; Heiland, S; Wilde, P; Jansen, O; Rother, J; Hacke, W; Sartor, K; Kompetenznetzwerk Schlaganfall B5 (Stroke, 2004)