[1] Royal Coll Physicians, London, England
[2] Oxford Univ Hosp NHS Fdn Trust, Psychol Med Serv, Oxford, England
[3] Manor Surg, Oxford, England
[4] Oxfordshire Clin Commissioning Grp, Oxford, England
[5] Oxford Univ Hosp NHS Fdn Trust, Oxford Ctr Diabet Endocrinol & Metab, Diabet & Acute Gen Med, Oxford, England
[6] NIHR Oxford Biomed Res Ctr, Oxford, England
[7] Oxford Univ Hosp NHS Fdn Trust, Oxford Ctr Diabet Endocrinol & Metab, Oxford, England