1. Division of Internal Medicine; Hospital of Bisceglie, ASL BAT; Bisceglie Italy
2. Department of Biomedical Sciences and Human Oncology, Clinica Medica “A. Murri”; University of Bari Medical School; Bari Italy
3. Division of Geriatrics and Gerontology; Hospital “Miulli”; Acquaviva delle Fonti Italy
4. Department of Medicine, Division of Gastroenterology and Liver Diseases, Marion Bessin Liver Research Center; Albert Einstein College of Medicine; Bronx New York
5. 2nd Department of Internal Medicine; "Iuliu Hatieganu" University of Medicine and Pharmacy; Cluj-Napoca Romania