1. Department of Public Health and Clinical Medicine, Epidemiology and Global Health, Umeå University, Umeå, Sweden
2. KEMRI Centre for Global Health Research, Kisumu, Kenya
3. Graduate School in Population Dynamics and Public Policy, Umeå University, Umeå, Sweden
4. Network Aging Research, University of Heidelberg, Heidelberg, Germany
5. Heidelberg Institute of Public Health, University of Heidelberg, Heidelberg, Germany
6. Centre de Recherche en Santé de Nouna, Nouna, Burkina Faso
7. Vadu Rural Health Program, KEM Hospital Research Centre, Pune, India
8. African Population and Health Research Center, Nairobi, Kenya
9. Center for Research in Therapeutic Sciences (CREATES), Strathmore University, Nairobi, Kenya
10. Department of Clinical Science, Center for Primary Health Care Research,Lund University, Malmö, Sweden
11. Department of Public Health and Clinical Medicine, Occupational and Environmental Medicine, Umeå University, Umeå, Sweden
12. School of Geographical Sciences and Urban Planning, Arizona State University, Tempe, Arizona USA
13. Centre for Demographic and Ageing Research, Umeå University, Umeå, Sweden