Aster Medcity, Nizam's Institute of Medical Sciences - Department of Neurology, Sree Chitra Tirunal Institute for Medical Sciences and Technology (SCTIMST), All India Institute of Medical Sciences (AIIMS), New Delhi, National Institute of Mental Health and Neurosciences (NIMHANS), University of Hyderabad, National Institute of Mental Health and Neurosciences - Department of Neurology, Post Graduate Institute of Medical Education & Research (PGIMER), Institute of Neurosciences Kolkata, All India Institute of Medical Sciences (AIIMS), Riskikesh, Manipal Hospital, Pramukhswami Medical College, Mazumdar Shaw Medical Center, Jaslok Hospital and Research Centre, Kokilaben Dhirubhai Ambani Hospital and Medical Research Institute, Gleneagles Global Hospital Maharashtra, Aster Cauvery Medical Institute, Sree Chitra Tirunal Institute for Medical Sciences and Technology (SCTIMST), All India Institute of Medical Sciences (AIIMS), New Delhi, Neuro Specialities Centre, All India Institute of Medical Sciences (AIIMS), New Delhi, National Institute of Mental Health and Neurosciences, Medical College Goa, Post Graduate Institute of Medical Education & Research (PGIMER), University of Tübingen, University of Tübingen, Aster Medcity and University of Tübingen - Institute for Clinical Epidemiology and Applied Biometrics,

King’s College London, King's College Hospital, Lady Hardinge Medical College, Poznan University of Medical Sciences, Mohammed Bin Rashid University of Medicine and Health Sciences, Mohammed Bin Rashid University of Medicine and Health Sciences, University of Hyderabad, Transilvania University of Brasov, Instituto de Salud Carlos III, University of Cologne, All India Institute of Medical Sciences (AIIMS), Bhopal, Nizam's Institute of Medical Sciences - Department of Neurology and King's College London

affiliation not provided to SSRN, King's College Hospital, King’s College London, affiliation not provided to SSRN, affiliation not provided to SSRN, Mohammed Bin Rashid University of Medicine and Health Sciences, Mohammed Bin Rashid University of Medicine and Health Sciences, Manipal Hospital, All India Institute of Medical Sciences (AIIMS), Bhopal, University of Hyderabad, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, Nizam's Institute of Medical Sciences - Department of Neurology, Lady Hardinge Medical College and affiliation not provided to SSRN

All India Institute of Medical Sciences (AIIMS), New Delhi, All India Institute of Medical Sciences, University of Western Ontario, University of Toronto, National Institute of Mental Health and Neurosciences - Department of Neurology, Maulana Azad Medical College - G.B. Pant Institute, Amrita Institute of Medical Sciences, Pramukhswami Medical College, Institute of Neurosciences Kolkata, Manipal Hospital, Sree Chitra Tirunal Institute for Medical Sciences and Technology (SCTIMST) - Department of Neurology, Sree Chitra Tirunal Institute for Medical Sciences and Technology (SCTIMST) - Department of Neurology, Independent, University of Hyderabad, Gleneagles Global Hospital Maharashtra, All India Institute of Medical Sciences (AIIMS), Riskikesh, Banaras Hindu University (BHU), Institute of Medical Science (IMS), Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), All India Institute of Medical Sciences, All India Institute of Medical Sciences (AIIMS) - Neurology Department, All India Institute of Medical Sciences (AIIMS) and All India Institute of Medical Sciences (AIIMS)