1. Department of Neurosurgery, All India Institute of Medical Sciences, Bhubaneshwar, Orissa;
2. Department of Neurosurgery, All India Institute of Medical Sciences, Rishikesh, Uttarakhand;
3. Department of Neurosurgery, All India Institute of Medical Sciences, New Delhi;
4. Department of Neurosurgery, Post Graduate Institute of Medical Education and Research, Chandigarh;
5. Department of Neurosurgery, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow; and
6. Department of Psychiatry, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, India