1. Department of Anesthesiology, Tribhuvan University Teaching Hospital, Maharajgunj, Kathmandu, Nepal
2. Departments of Anesthesiology and Critical Care Medicine, Neurology and Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
3. Brain and Spinal Injury Center, Department of Neurology, Zuckerberg San Francisco General Hospital, University of California, San Francisco