1 Department of Neurosurgery, National Pediatric Hospital Juan P. Garrahan, Combate de los Pozos 1881, Buenos Aires, Argentina. rjdelrio@gmail.com.
2 Department of Neurosurgery, National Pediatric Hospital Juan P. Garrahan, Combate de los Pozos 1881, Buenos Aires, Argentina. sebastianjaimovich@gmail.com.
3 De los Arcos Clinic, Buenos Aires, Argentina.
4 Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.
5 Departamento de Medicina, Universidade Federal de São Carlos, São Carlos, Brazil.