1. Population Services International (PSI) Washington DC USA
2. Population Services International Harare Zimbabwe
3. Population Services International Blantyre Malawi
4. Society for Family Health Lusaka Zambia
5. Department of HIV World Health Organization Geneva Switzerland
6. Faculty of Infectious and Tropical Diseases London School of Hygiene and Tropical Medicine London United Kingdom
7. Malawi‐Liverpool Wellcome Trust Blantyre Malawi