title: Quadrigeminal variant of perimensencephalic nonaneurysmal subarchnoid hemorrhage.
authors: E F
authors: EF
authors: Wijdicks
authors: W I
authors: WI
authors: Schievink
mesh_terms: D006801:Humans; D008636:Mesencephalon; D013345:Subarachnoid Hemorrhage / Q000145:classification*