1. Department of Neurology School of Medicine Emory University Atlanta GA USA
2. Health Science Center at Houston School of Public Health University of Texas Houston TX USA
3. Faculty of Medical Sciences University of Cuenca Cuenca Ecuador
4. Gertrude H. Sergievsky Center and Department of Epidemiology Columbia University Medical Center New York NY USA
5. Neurology Department West China Hospital Sichuan University Chengdu China
6. Department of Neurology Fann University Hospital Dakar Senegal
7. Department of Neurology University of California San Francisco CA USA
8. Kenya Medical Research Institute–Wellcome Trust Collaborative Program Kilifi Kenya
9. Department of Psychiatry University of Oxford Oxford UK