1. King's College London, Social Epidemiology Research Group, Health Service and Population ResearchInstitute of Psychiatry, Psychology & Neuroscience London UK
2. South London and Maudsley NHS Foundation Trust London UK
3. Internal Medicine Department, Geriatric SectionUniversidad Nacional Pedro Henriquez Ureña (UNPHU) Santo Domingo Dominican Republic
4. Psychogeriatric UnitNational Institute of Mental Health Honorio Delgado Hideyo Noguchi, Lima, Peru and Centro de la Memoria y Desordenes Relacionados Lima Perú
5. Peking University, Institute of Mental Health Beijing China
6. Department of Ageing and Life CourseWorld Health Organization Geneva Switzerland
7. Internal Medicine Department, Geriatrics Program, School of Medicine, Medical Sciences CampusUniversity of Puerto Rico San Juan Puerto Rico
8. Facultad de Medicina Finlay‐AlbarranMedical University of Havana Havana Cuba
9. Medicine Department, Caracas University Hospital, Faculty of MedicineUniversidad Central de Venezuela Caracas Venezuela
10. National Institute of Neurology and Neurosurgery of MexicoNational Autonomous University of Mexico Mexico City Mexico
11. King's College LondonGlobal Health Institute London UK