1. Department of Neurology, All India Institute of Medical Sciences, New Delhi, India
2. Department of Neurology, Rajendra Institute of Medical Sciences, Ranchi, Jharkhand
3. Department of Biostatistics, All India Institute of Medical Sciences, New Delhi, India
4. Centre for Community Medicine, All India Institute of Medical Sciences, New Delhi, India
5. Department of Cardiology, All India Institute of Medical Sciences, New Delhi, India
6. Department of Neuro-Psychology, All India Institute of Medical Sciences, New Delhi, India
7. Department of Neurobiochemistry, All India Institute of Medical Sciences, New Delhi, India
8. Department of Neuroradiology, All India Institute of Medical Sciences, New Delhi, India
9. Department of Dietetics, All India Institute of Medical Sciences, New Delhi, India
10. Clinical Epidemiology Unit, All India Institute of Medical Sciences, New Delhi, India
11. Department of Gastroenterology and Human Nutrition, All India Institute of Medical Sciences, New Delhi, India
12. Department of Hematology, Department of Gastroenterology and Human Nutrition, All India Institute of Medical Sciences, New Delhi, India
13. Division of Periodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
14. Neuroimaging and Neurospectroscopy Laboratory, National Brain Research Centre (NBRC), Gurugram, India
15. Department of Epidemiology, Erasmus MC, Rotterdam, The Netherlands
16. Department of Social and Behavioral Sciences, Department of Epidemiology, Harvard School of Public Health, Boston, MA, USA