1. Politecnica Delle Marche University ASUR Marche, AV 5 Ascoli Piceno Italy
2. Department of Biomedicine and Prevention University of Rome Tor Vergata Rome Italy
3. Center for Outcomes Research and Clinical Epidemiology (CORESEARCH) Pescara Italy
4. Department of Biomedical Science and Human Oncology University of Bari Aldo Moro Bari Italy