1. Department of Anesthesiology, Pharmacology & Therapeutics, University of British Columbia, Vancouver, Canada
2. Stroke Unit, Department of Neurology, Christian Medical College, Ludhiana, India
3. Department of Neurology, Dayanand Medical College, Ludhiana, India
4. Departments of Community Medicine, Christian Medical College, Ludhiana, India
5. Division of Non Communicable Diseases, ICMR, Ansari Nagar, New Delhi, India