1. Interdisciplinary Department of Medicine D.I.M., University of Bari “Aldo Moro”, 70124 Bari, Italy
2. Department of Oral Rehabilitation, Faculty of Dentistry, Iuliu Hatieganu University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
3. College of Medicine and Dentistry Birmingham, University of Birmingham, Birmingham B4 6BN, UK