1. Faculty of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
2. Faculty of Medicine, State University of Ponta Grossa, Paraná, Brazil
3. Independent Researcher
4. Department of Neurology, Massachusetts General Hospital, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
5. Department of Neurosurgery, Municipal Hospital Miguel Couto, Rio de Janeiro, Brazil
6. Faculty of Medicine, University of São Paulo, São Paulo, Brazil
7. Department of Neurosurgery, University of São Paulo, São Paulo, Brazil
8. School of Medicine, Vanderbilt University, Nashville, TN, USA
9. Department of Cerebrovascular and Endovascular Surgery, Baptist Neurologic Institute and Lyerly Neurosurgery, Jacksonville, FL, USA