1. 1Department of EndocrinologyUniversity of Cambridge, Cambridge Biomedical Research Centre, Addenbrooke’s Hospital, Cambridge, UK
2. 2East Anglian Regional Radiation Protection ServiceCambridge University Hospitals NHS Foundation Trust, Cambridge, UK
3. 3Department of RadiologyCambridge University Hospitals NHS Foundation Trust, Cambridge, UK
4. 4Wolfson Diabetes and Endocrine ClinicInstitute of Metabolic Science, Addenbrooke’s Hospital, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK