1. Department of Radiology, Narayana Medical College, Narayana Medical College Hospital, Nellore, Andhra Pradesh
2. Department of Neurosurgery, Narayana Medical College Hospital, Nellore, Andhra Pradesh
3. Department of Pathology, Narayana Medical College Hospital, Nellore, Andhra Pradesh
4. Neurosurgery-Critical Care, Red Latino, Organizacion Latinoamericana De Trauma Y Cuidado Neurointensivo, Bogota