1. Department of Cancer and Surgery; Imperial College London; Hammersmith Campus London UK
2. Early Pregnancy and Acute Gynaecology Unit; Queen Charlotte's and Chelsea Hospital, Imperial College London; London UK
3. Department of Development and Regeneration; KU Leuven; Leuven Belgium
4. Department of Ultrasound; Queen Charlotte's and Chelsea Hospital; London UK
5. West Middlesex University Hospital; Isleworth Middlesex UK
6. Southampton University Hospitals; Princess Anne Hospital; Southampton UK