Screening for MELAS mutations in young patients with stroke of undetermined origin - Conforto, Adriana Bastos; Yamamoto, Fabio Iuji; Oba-Shinjo, Sueli Mieko; Pinto, Julio Guy C.; Hoshino, Maurício; Scaff, Milberto; Marie, Suely Kazue Nagahashi (Arquivos de Neuro-Psiquiatria, 2007)