Dodwell David, Jauhari Yasmin, Gathani Toral, Cromwell David, Gannon Melissa, Clements Karen, Horgan Kieran
Nuffield Department of Population Health, University of Oxford, Oxford, UK
Clinical Effectiveness Unit, Royal College of Surgeons of England, London, UK.
BMJ. 2020 Dec 1;371:m4237. doi: 10.1136/bmj.m4237.