1. Consultant Obstetrician and Gynaecologist Bradford Royal Infirmary Bradford BD9 6RJ UK
2. Consultant Haematologist, Joint Obstetric Haemoglobinopathy Clinic Lead and Adult Haemoglobinopathy Lead Leeds Teaching Hospitals NHS Trust and Honorary Clinical Associate Professor, University of Leeds Leeds UK
3. Consultant Obstetrician and Joint Obstetric Haemoglobinopathy Clinic Lead Leeds Teaching Hospitals NHS Trust Leeds General Infirmary Leeds LS1 3EX UK