1. From the Faculty of Medicine, University of Oslo, Oslo, Norway and Departments of Obstetrics and Gynaecology, Oslo University Hospital, Oslo, Norway (A.C.S., K.M.); Nuffield Department of Obstetrics and Gynaecology (C.W.G.R), Radcliffe Department of Medicine (P.L.), University of Oxford, Oxford, United Kingdom; Department of Maternal Medicine, Institute for Women’s Health, University College London, London, United Kingdom (D.W.); Department of Obstetrics and Gynaecology, St. George’s Hospital,...