1 Department of Oncology, University of Cambridge, Addenbrooke's Hospital, Cambridge CB2 0QQ, UK; Cambridge Breast Cancer Research Unit, Cambridge University Hospitals National Health Service (NHS) Foundation Trust, Cambridge, UK; National Institute for Health Research (NIHR), Cambridge Biomedical Research Centre, Cambridge, UK. Electronic address: hme22@cam.ac.uk.
2 Warwick Clinical Trials Unit, University of Warwick, Coventry, UK.
3 Department of Cardiology, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK; Freeman Hospital, Newcastle upon Tyne, UK.
4 Medical Oncology, Mount Vernon Cancer Centre, Northwood, UK.
5 Research and Development, NIHR Manchester Clinical Research Facility, Christie NHS Foundation Trust, Manchester, UK; Division of Cancer Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, UK.
6 Cancer Edinburgh Research Centre, The Institute of Genetics and Molecular Medicine, University of Edinburgh, Western General Hospital, Edinburgh, UK.