1The Nightingale Breast Cancer Centre, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester, M23 9LT UK
2Department of Breast Surgery, St. James’s University Hospital, Leeds, LS9 7TF UK
3Department of Surgery and Cancer, Imperial College, London, UK
4Department of Breast Surgery, The Royal Marsden NHS Foundation Trust, Downs Road, Sutton, Surrey SM2 5PT UK
5Leicester Cancer Research Centre, Clinical Sciences Building, University of Leicester, Leicester, LE2 2LX UK
6Division of Population Health, Health Services Research, and Primary Care, School of Health Sciences, University of Manchester, Manchester, M13 9PL UK
7Trustee, Independent Cancer Patients Voice, Manchester, UK
8Breast unit, Level 1 Chancellor wing, St James’s Hospital, Leeds, LS9 7TF UK
9Queen Margaret Hospital, Dunfermline, Whitefield Rd, Dunfermline, KY12 0SU UK
10Patrick G Johnston Centre for Cancer Research, Queen’s University Belfast, 97 Lisburn Road, Belfast, BT9 7AE UK
11The Royal Wolverhampton NHS Trust, Wolverhampton Road, Wolverhampton, WV10 0QP UK
12Bristol Centre for Surgical Research, Population Health Sciences, Bristol Medical School, Canynge Hall, Whatley Road, Bristol, BS8 2PS UK
13Bristol Breast Care Centre, North Bristol NHS Trust, Southmead Road, Bristol, BS10 5NB UK
14Linda McCartney Centre, Royal Liverpool and Broadgreen University Hospital, Prescot Street, Liverpool, L7 8XP UK
15Cancer Sciences Academic Unit, University of Southampton and University Hospital Southampton, Tremona Road, Southampton, SO16 6YD UK
16Department of Oncology, University of Cambridge, Cambridge, UK
17Division of Cancer Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Oglesby Cancer Research Building, Manchester Cancer Research Centre, Wilmslow Road, Manchester, M20 4BX UK