1. Dental School, University of Chieti-Pescara, Italy
2. Gynecology Division, Pescara Hospital, Pescara, Italy
3. Department of Orthopedics, Catholic University of Rome, Rome, Italy
4. Department of Dermatology, University of Rome Tor Vergata, Rome, Italy
5. Department of Orthopedics, University of Chieti-Pescara, Chieti, Italy
6. Ortona Hospital, University of Chieti-Pescara, Italy
7. Department of Orthopedics, University of Perugia, Perugia, Italy
8. Immunology Division, University of Chieti-Pescara, Italy
9. Department of Medicine, Catholic University of Rome, Italy
10. Department of Parassitology, Thessaloniki University, Greece
11. Department of Physiology and Pharmacology, Tufts University School of Medicine, New England Medical Center, Boston, MA, USA