1. Department of Cardiovascular and Endocrine-Metabolic Diseases and Aging, Italian National Institute of Health, Rome, Italy.
2. Department of Internal Medicine and Medical Specialties, University of Genova, Genova, Italy.
3. Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy.
4. Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy.
5. Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy.
6. Reference Center for Behavioral Sciences and Mental Health, Italian National Institute of Health, Rome, Italy.
7. Department of Pediatrics, University of Pisa, Pisa, Italy.