Tahseen A Chowdhury1, Roisin Wright2, M Magdi Yaqoob2. 1. Departments of Diabetes and Nephrology, Barts and the London School of Medicine and Dentistry, London E1 1BB, UK. Tahseen.Chowdhury@bartshealth.nhs.uk. 2. Departments of Diabetes and Nephrology, Barts and the London School of Medicine and Dentistry, London E1 1BB, UK.