作者: Everton Barbosa-Silva , Gervásio Teles C. Carvalho , Marcelo de Oliveira Frota , Atos Alves de Sousa , Carlos Batista Alves de Souza
DOI: 10.1590/S0004-282X2009000300033
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摘要: MD, Department of Neurosurgery, Santa Casa de Misericordia Belo Horizonte and Faculdade Ciencias Medicas, MG, Brazil.Received 1 July 2008, received in final form 13 January 2009. Accepted 6 April 2009.Dr. Everton Barbosa da Silva – Rua Padre Marinho 480 / 504 - 30140-040 MG Brasil. E mail: evertonbs@hotmail.com