A pilot study of topiramate in children with Lennox-Gastaut syndrome - Marilisa M Guerreiro; Manreza, Maria Luiza G; Scotoni, Anna Elisa; Guerreiro, Carlos A M; Silva, E A; Souza, E A P; Ferreira, V B; Reed, Umbertina Conti; Diament, Aron Judka; Trefiglio, R; Chiu, H C; Bacaltchuk, Josué (Arquivos de Neuro-Psiquiatria, 1999)