Medulloblastoma: evaluation of proliferative index by monoclonal antibody Mib-1, its prognostic correlation and therapeutic implications - Ferrari, Antonio Fernandes; Araújo, Maria Betânia Mahler; Aguiar, Paulo Henrique Pires de; Plese, José Pindaro Pereira (Arquivos de Neuro-Psiquiatria, 2003)