1. Sydney Brenner Institute for Molecular Bioscience, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
2. Faculty of Health Sciences University of the Witwatersrand, Division of Human Genetics, National Health Laboratory Service and School of Pathology, Johannesburg, South Africa
3. Navrongo Health Research Centre, Navrongo, Ghana
4. Department of Pathology and Medical Science, School of Health Care Sciences, Faculty of Health Sciences, University of Limpopo, Polokwane, South Africa
5. Clinical Research Unit of Nanoro, Institut de Recherche en Sciences de la Sante, Nanoro, Burkina Faso
6. Department of Chemical Pathology, National Health Laboratory Service, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
7. 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
8. African Population and Health Research Center, Nairobi, Kenya
9. School of Electrical & Information Engineering, University of the Witwatersrand, Johannesburg, South Africa
10. School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
11. INDEPTH Network, Accra, Ghana
12. MRC/Wits Developmental Pathways for Health Research Unit, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
13. Statistics Sierra Leone, Tower Hill, Freetown, Sierra Leone
14. Department of Community Medicine, College of Medicine and Allied Health Sciences,University of Sierra Leone, Freetown, Sierra Leone