1 Department of Neuroanaesthesia and Neurocritical care, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India. mathz89@gmail.com.
2 Department of Neuroanaesthesia and Neurocritical care, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India.
3 Department of Neurosurgery, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India.