1. Nerve and Plexus Surgery Program, Division of Neurosurgery, University of Buenos Aires School of Medicine, Buenos Aires, Argentina
2. Department of Neurosurgery, Hospital Central de la Defensa Gómez Ulla, Madrid, Spain
3. Department of Diagnostic Imaging, Raúl Carrea Foundation for Neurological Research, FLENI, Buenos Aires, Argentina
4. Department of Neurologic Surgery, Mayo Clinic, Rochester, Minnesota, USA
5. Department of Neurosurgery, Raúl Carrea Foundation for Neurological Research, FLENI, Buenos Aires, Argentina