Andrew Apps1, Hassan Farida2, Ritwik Banerjee3. 1. 1 Oxford Centre for Clinical Magnetic Resonance (OCMR), Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford OX3 9DU, UK. 2. 2 Foundation doctor, Luton and Dunstable NHS Trust, Luton LU4 0DZ, UK. 3. 3 Consultant Endocrinologist, Luton and Dunstable NHS Trust, Luton LU4 0DZ, UK.