1. Center for Genomic and Precision Medicine, College of Medicine, University of Ibadan, Ibadan, Nigeria.
2. Neuroscience and Ageing Research Unit, Institute for Advanced Medical Research and Training, College of Medicine, University of Ibadan, Ibadan, Nigeria.
3. Pathology Department, Federal Medical Centre, Abeokuta, Nigeria.
4. Neurology Unit, Department of Medicine, College of Medicine, University of Ibadan, Nigeria.
5. Neurology Unit, Department of Medicine, Obafemi Awolowo University Teaching Hospital, Ile-Ife, Nigeria.
6. Neurology Unit, Department of Medicine, Kwame Nkrumah University of Science & Technology, Kumasi, Ghana.
7. Neurology Unit, Department of Medicine, School of Medicine & Dentistry, College of Health Sciences, University of Ghana, Accra, Ghana.
8. Neurology Unit, Department of Medicine, Bayero University, Kano, Nigeria.
9. Neurology Unit, Department of Medicine, University of Ilorin Teaching Hospital, Ilorin, Nigeria.
10. Neurology Unit, Department of Medicine, Jos University Teaching Hospital, Jos, Nigeria.
11. Neurology Unit, Department of Medicine, Ahmadu Bello University Teaching Hospital, Zaria, Nigeria.
12. Neurology Unit, Department of Medicine, Ladoke Akintola University Teaching Hospital, Ogbomoso, Nigeria.
13. Neurology Unit, Department of Medicine, Federal University Teaching Hospital, Ido Ekiti, Nigeria.
14. Neurology Unit, Department of Medicine, Delta State University Teaching Hospital, Igharra, Nigeria.
15. Neurology Unit, Department of Medicine, Federal Medical Center, Owo, Nigeria.
16. Neurology Unit, Department of Medicine, Federal Medical Center, Umuahia, Nigeria.
17. Department of Neurosciences, Medical University of South Carolina, Charleston, South Carolina.
18. School of Public Health, University of Alabama, Birmingham, Alabama.