1 Department of Neurosurgery, National Hospital of Neurology and Neurosurgery, London, UK. h.marcus@ucl.ac.uk.
2 Wellcome/Engineering and Physical Sciences Research Council (EPSRC) Centre for Interventional and Surgical Sciences (WEISS), London, UK. h.marcus@ucl.ac.uk.
3 Department of Obstetrics and Gynaecology, Houston Methodist Hospital Neal Cancer Center, Houston, TX, USA.
4 Department of Neurosurgery, National Hospital of Neurology and Neurosurgery, London, UK.
5 Wellcome/Engineering and Physical Sciences Research Council (EPSRC) Centre for Interventional and Surgical Sciences (WEISS), London, UK.
6 RCS Surgical Interventional Trials Unit (SITU) & Robotic and Digital Surgery Initiative (RADAR), Nuffield Dept Orthopaedics, Rheumatology and Musculo-skeletal Sciences, University of Oxford, Oxford, UK.
7 Department of Gynaecological Oncology, Apollo Hospital, Bengaluru, India.
8 Department of Anaesthesia and Perioperative Medicine, Medical University of South Carolina, Charleston, SC, USA.
9 NIHR Coordinating Centre and Clinical Trials Unit, University of Southampton, Southampton, UK.
10 Department of Philosophy, Macquarie University, Sydney, Australia.
11 Department of Anesthesia & Perioperative Medicine, University of Western Ontario, Ontario, Canada.
12 Department of Medical Gerontology, School of Medicine, Trinity College Dublin, Dublin, Republic of Ireland.
13 Department of Medical Imaging, Radboudumc, Nijmegen, the Netherlands.
14 Department of Biomedical Engineering and Imaging Sciences, King's College London, London, UK.
15 King's Health Partners Academic Surgery, King's College London, London, UK.
16 Moon Surgical, Paris, France.
17 RCSEng Surgical Trials Centre, Leeds Institute of Clinical Trials Research, University of Leeds, Leeds, UK.
18 Bowel Research UK, London, UK.
19 School of Biomedical Engineering & Imaging Sciences, King's College London, London, UK.
20 Department of Surgery, Geneva University Hospital, Geneva, Switzerland.
21 Nuffield Department of Surgical Sciences, University of Oxford, John Radcliffe Hospital, Oxford, UK.
22 Nuffield Department of Surgical Sciences, University of Oxford, John Radcliffe Hospital, Oxford, UK. peter.mcculloch@nds.ox.ac.uk.