1. NHS Digital Quality and Outcomes Framework (QOF) 2009/10 http://content.digital.nhs.uk/catalogue/PUB04431
2. NHS Digital Quality and Outcomes Framework (QOF) 2015/16 http://content.digital.nhs.uk/qof
3. National Diabetes Audit, Report 1 Care processes and Treatment Targets 2016-17 https://digital.nhs.uk/catalogue/PUB30142
4. National Diabetes Audit, 2015-16 Report 2a: Complications and Mortality https://digital.nhs.uk/catalogue/PUB30030
5. Estimating the current and future costs of Type 1 and Type 2 diabetes in the UK, including direct health costs and indirect societal and productivity costs;Hex;Diabet Med,2012