Ribeiro, MHoward, PPWillinsky, RABrugge, KCosta, L2012-05-182012-05-182010Can J Neurol Sci. 2010;37(2):286-8.http://hdl.handle.net/10400.23/238engHematomaHemorragia SubaracnóideiaTomografia ComputorizadaRessonância MagnéticaSubarachnoid hemorrhage in perivascular spaces mimicking brainstem hematomajournal article