1. Department of Health Sciences; ASST Santi Paolo e Carlo; Institute of Infectious Diseases; University of Milan; Milan Italy
2. EMEA HEOR Department; Gilead Sciences; Uxbridge UK
3. Division of Infectious Diseases; Department of Medical Biotechnologies; University of Siena; Siena Italy
4. Department of Infectious Diseases; Giovanni XXIII Hospital; Bergamo Italy
5. Institute of Infectious Diseases; Cattolica University; Rome Italy
6. Institute of Infectious Diseases; University of Torino; Torino Italy
7. Institute of Infectious Diseases; University vita E. Salute; Milan Italy
8. INMI Lazzaro Spallanzani; Rome Italy
9. Department of Infectious Diseases; Bagno A. Ripoli Hospital; Firenze Italy
10. University of Modena and Reggio Emilia; Modena Italy
11. University College London; London UK