1. Division of Medical Sciences and Graduate Entry Medicine, School of Medicine, University of Nottingham, Royal Derby Hospital Centre, Derby DE22 3DT, UK
2. Department of Oncology, Nottingham University Hospitals, Nottingham NG5 1PB, UK
3. Department of Oncology, Institut Curie, Paris, France
4. Breast Unit, Royal Derby Hospital, Derby DE22 3NE, UK
5. Geriatrics Service, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
6. Breast Unit, Brighton & Sussex University Hospital, Brighton BN1 6AG, UK
7. Peterborough Breast Unit, Peterborough PE3 9GZ, UK
8. Hong Kong Breast Cancer Registry, Hong Kong Breast Cancer Foundation, Hong Kong, SAR
9. Department of Geriatric Oncology, University Hospitals Leuven, Belgium
10. Future Science Group, Unitec House 2 Albert Place, Albert Pl, London N3 1QB, UK