1. Cardio Metabolic Unit, Department of Medicine and Department of Laboratory Medicine Karolinska Institutet Stockholm Sweden
2. Medicine Unit Endocrinology, Theme Inflammation and Ageing Karolinska University Hospital Stockholm Sweden
3. Department of Biochemistry, Faculty of Medicine Khartoum University Khartoum Sudan
4. Université de Paris, BFA Paris France
5. Unit of Endocrinology, Department of Medicine Karolinska Institutet at Karolinska University Hospital Huddinge Stockholm Sweden
6. Oxford Centre for Diabetes, Endocrinology and Metabolism, Radcliffe Department of Medicine University of Oxford Oxford UK
7. National Institute for Health Research Oxford Biomedical Research Centre Oxford University Hospital Trusts Oxford UK