1. Department of Epidemiology and Biostatistics Indiana University School of Public Health‐Bloomington Bloomington IN USA
2. MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt) School of Public Health Faculty of Health Sciences University of the Witwatersrand Johannesburg South Africa
3. INDEPTH Network Accra Ghana
4. Umeå Centre for Global Health Research Division of Epidemiology and Global Health Department of Public Health and Clinical Medicine Umeå University Umeå Sweden
5. Center for Population and Development Studies Harvard University Cambridge MA USA
6. School of Demography, Research School of Social Sciences Australian National University Canberra Australia
7. Africa Health Research Institute Durban South Africa
8. Heidelberg Institute of Global Health Faculty of Medicine and University Hospital University of Heidelberg Heidelberg Germany
9. Department of Epidemiology School of Public Health University of Michigan Ann Arbor MI USA