1. The Nightingale Breast Centre, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Southmoor Road, Manchester M23 9LT, UK
2. Division of Cancer Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
3. Sheffield Breast Unit, Royal Hallamshire Hospital, Sheffield S10 2JF, UK
4. Centre for Women’s Mental Health, Division of Psychology and Mental Health, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
5. Burnley Breast Unit, Burnley General Hospital, East Lancashire Hospitals NHS Trust, Casterton Avenue, Burnley BB10 2PQ, UK
6. Liverpool Breast Unit, Linda McCartney Centre, Royal Liverpool University Hospital, Prescot Street, Liverpool L7 8XP, UK
7. Queen Alexandra Hospital, Portsmouth Hospitals NHS Trust, Southwick Hill Road, Cosham, Portsmouth, Hampshire PO6 3LY, UK
8. Breast Care Centre, Ainscoe House, Blackpool Victoria Hospital, 12 E Park Dr, Blackpool FY3 8DX, UK