1. Department of Neurosurgery, Narayana Medical College and Hospital, Nellore, Andhra Pradesh, India
2. Department of Radiology, Narayana Medical College Hospital, Chinthareddypalem, Nellore, Andhra Pradesh, India
3. Department of Emergency Medicine, Narayana Medical College Hospital, Chinthareddypalem, Nellore, Andhra Pradesh, India