1. Leeds Teaching Hospitals, Leeds
2. St James Institute of Oncology, Leeds
3. Edge Hill University, Ormskirk and University of Manchester, Manchester
4. Breast Surgery Department, Leeds Teaching Hospitals, Leeds General Infirmary, Leeds
5. University Hospital Aintree, Liverpool
6. Department of Molecular & Clinical Cancer Medicine, Liverpool CR-UK Centre, Liverpool
7. Evidence-Based Practice Research Centre (EPRC), Faculty of Health, Edge Hill University, Ormskirk, and Regional Maxillofacial Unit, University Hospital Aintree, Liverpool, UK