1. Oxford Centre for Diabetes, Endocrinology and Metabolism Oxford University Hospitals NHS Trust Oxford UK
2. Department of Systems Medicine, Endocrinology & Metabolism Unit University of Rome Tor Vergata Rome Italy
3. ACHD Cardiology Oxford University Hospitals NHS Trust Oxford UK
4. Division of Cardiovascular Medicine, Radcliffe Department of Medicine, Centre for Clinical Magnetic Resonance Research University of Oxford Oxford UK