Ffion Carlin1, Adrian B Walker1, Joseph M Pappachan2. 1. Department of Endocrinology, Diabetes & Metabolism, University Hospital of North Staffordshire, Stoke-on-Trent, UK. 2. Department of Endocrinology, Diabetes & Metabolism, University Hospital of North Staffordshire, Stoke-on-Trent, UK. Electronic address: drpappachan@yahoo.co.in.