Non-aneurysmal perimesencephalic subarachnoid hemorrhage in a pediatric patient: case report - Bernardi, Ana Clara; Neto, Gabriel De Lellis; Horácio, Hugo Leonardo Justo; Sousa, Renata Yasmin Cardoso; Becker, Michele Michelin; Ohlweiler, Lygia; Marchezan, Josemar; Ranzan, Josiane (Arquivos de Neuro-Psiquiatria, 2024)