1. Department of Neurosurgery, All India Institute of Medical Sciences, Saket Nagar, Bhopal, Madhya Pradesh, India
2. Department of Neurosurgery, Holy Family Red Crescent Medical College, Dhaka, Bangladesh
3. Department of Neurosurgery, Paracelsus Medical University, Salzburg, Austria
4. Department of Neurosurgery, Universidad de Cartagena, Cartagena, Colombia
5. Department of Neurology, Narayana Medical College and Hospital, Nellore, Andhra Pradesh, India