Diffusion weighted magnetic resonance imaging in the diagnosis of reversible ischaemic deficits of the brainstem. - Marx,J.J.; Mika-Gruettner,A.; Thoemke,F.; Fitzek,S.; Fitzek,C.; Vucurevic,G.; Urban,P.P.; Stoeter,P.; Hopf,H.C. (J Neurol Neurosurg Psychiatry, 2002)