Dr Charlotte Frise is a Consultant Obstetric Physician based at Queen Charlotte's and Chelsea Hospital and Lead Consultant Obstetric Physician for the NW London Maternal Medicine Network. She is co-editor-in-chief of the journal Obstetric Medicine: the medicine of pregnancy, author of Obstetric Medicine, in the Oxford Specialist Handbooks of Obstetrics and Gynaecology series and co-author of Oxford Case Histories in Obstetric Medicine. She is also a Senior College Lecturer in Clinical Medicine at Keble College, University of Oxford.