1. Institute of “Clinica Medica”, Department of Medicine and Aging Science, “G. D’Annunzio” University of Chieti, 66100 Chieti, Italy
2. Section of Hygiene, Epidemiology and Public Health, Department of Pharmacy, “G. D’Annunzio” University of Chieti, 66100 Chieti, Italy
3. Internal Medicine, Bentivoglio Hospital, AUSL Bologna, 40010 Bologna, Italy