1. Department of Reproductive Health and Research UNDP/UNFPA/UNICEF/WHO/World Bank Special Programme of Research, Development and Research Training in Human Reproduction (HRP) WHO Geneva Switzerland
2. Evidence‐Based Medicine Consultancy Ltd Bath UK
3. Health Economics Group Institute of Health and Society Newcastle University Newcastle‐upon‐Tyne UK
4. Maternal and Child Health Burnet Institute Melbourne Vic. Australia