1 Critical Care, Salinas Valley Memorial Healthcare System, California.
2 Neurosurgical department, University Hospital "Sofiamed", Sofia, Bulgaria.
3 Center for Biomedical Research (CIB), Cartagena Neurotrauma Research Group, Faculty of Medicine, University of Cartagena, Cartagena de Indias, Colombia.
4 Department of Neurosurgery, Narayana Medical College and Hospital, Nellore, Andhra Pradesh, India.