Does amantadine improve cognitive recovery in severe disorders of consciousness after aneurysmal subarachnoid hemorrhage?: a double-blind placebo-controlled study - Gatto, Luana Antunes Maranha; Demartini Junior, Zeferino Demartini; Telles, Joao Paulo Mota; Figueiredo, Eberval Gadelha (CLINICAL NEUROLOGY AND NEUROSURGERY, 2024)