1. Department of Medicine, University of Central Florida College of Medicine, Orlando, FL, USA
2. Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of South Carolina, Columbia, SC, USA
3. Department of Cardiovascular Medicine, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic
4. Third Department of Internal Medicine, General University Hospital and First Medical Faculty, Charles University, Prague, Czech Republic
5. First Propedeutic Department of Medicine, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
6. Department of Health Promotion Sciences Maternal and Infantile Care, Internal Medicine and Medical Specialties (Promise), School of Medicine, University of Palermo, Palermo, Italy