1. Department of Medicine, Division of Nephrology, Turku University Hospital, 20521 Turku, Finland
2. 1st Department of Propaedeutic and Internal Medicine, Medical School, National and Kapodistrian University of Athens, Laiko General Hospital, 11527 Athens, Greece
3. Department of Imaging, Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield S10 2TN, UK
4. Turku PET Centre, 20521 Turku, Finland
5. Department of Endocrinology, Turku University Hospital, 20521 Turku, Finland
6. CNR, Institute of Clinical Physiology, 56124 Pisa, Italy
7. Department of Surgical, Medical, Molecular and Critical Area Pathology, University of Pisa, 56124 Pisa, Italy
8. Department of Clinical and Experimental Medicine, University of Pisa, 56124 Pisa, Italy