Incidence, morphology and morphometry of the foramen of Vesalius: complementary study for a safer planning and execution of the trigeminal rhizotomy technique - Shinohara, André Luis; Melo, Carina Guimarães de Souza; Silveira, Elcia Maria Varize; Lauris, José Roberto Pereira; Andreo, Jesus Carlos; Rodrigues, Antonio de Castro (Surgical and Radiologic Anatomy: SRA, 2010)