1. Department of Neurosurgery, Alluri Sita Ramaraju Academy of Medical Sciences (ASRAM), Eluru, India.
2. Department of Neurosurgery, Suraksha Hospital, Vijayawada, Andhra Pradesh, India.
3. Department of Neurosurgery, Jayasree Neuro Centre, Vijayawada, Andhra Pradesh, India.
4. Department of Pathology, Alluri Sita Ramaraju Academy of Medical Sciences (ASRAM), Eluru, India.