Cecilia Bottomley MBBChir MRCOG MD Consultant Gynaecologist and Honorary Associate Professor University College London Hospitals (UCLH) London, UK Ruth MacSwan ST6 in Obstetrics and Gynaecology and Clinical Fellow in Obstetric Ultrasound University College London Hospitals (UCLH) London, UK Janice Rymer MD FRCOG FRANZCOG FHEA Dean of Student Affairs and Professor of Obstetrics and Gynaecology King’s College School of Medicine and Consultant Gynaecologist Guy’s and St Thomas’ NHS Foundation Trust London, UK