1. Faculty of Public Health and Policy London School of Hygiene and Tropical Medicine London UK
2. Centre for Quality Improvement and Clinical Audit Royal College of Obstetricians and Gynaecologists London UK
3. Centre for Reproduction Research Faculty of Health and Life Sciences De Montfort University Leicester UK
4. Royal Free London NHS Foundation Trust London UK
5. Department of Women and Children’s Health King’s College London London UK
6. Reproduction and Perinatal Centre Faculty of Medicine and Health University of Sydney Sydney New South Wales Australia
7. Clinical Effectiveness Unit Royal College of Surgeons London UK