1. Department of Neuromedicine, Bangur Institute of Neurosciences, Kolkata, India
2. Department of General Medicine, Apollo Gleneagles Hospitals, Kolkata, India
3. Department of General Medicine, Burdwan Medical College & Hospital, Burdwan, India
4. Department of Psychiatry, Berhampore Mental Hospital, Murshidabad, India
5. Department of Psychiatry, Institute of Psychiatry, Institute of Post Graduate Medical Education and Research, Kolkata, India
6. Department of Biochemistry, All India Institute of Medical Sciences (AIIMS), Jodhpur, India
7. Department of Neurology, University Hospital “12 de Octubre”, Madrid, Spain
8. Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
9. Department of Medicine, Complutense University, Madrid, Spain