1. Department of Ageing & Health; Guys & St Thomas' NHS Foundation Trust; St Thomas' Hospital; London UK
2. Division of Health and Social Care Research; King's College London; London UK
3. Department of Primary Care and Public Health Sciences; King's College London; London UK
4. Department of Haematology; Guys & St Thomas' NHS Trust; Guys Hospital; London UK
5. Department of Medical Oncology; Guys & St Thomas' NHS Trust; Guys Hospital; London UK
6. Department of Clinical Oncology; Guys & St Thomas' NHS Trust; London UK
7. Bexley Clinical Commissioning Group/Macmillan GP; Crook Log General Practice Surgery; Bexleyheath Kent UK