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. Ortona Hospital, University of Chieti-Pescara, Italy
6. Department of Orthopedics, University of Perugia, Perugia, Italy
7. Immunology Division, University of Chieti-Pescara, Italy
8. Department of Physiology and Pharmacology, Tufts University School of Medicine, New England Medical Center, Boston, MA, USA