1. Department of Infectious Diseases, ASST Fatebenefratelli Sacco University Hospital, Milan, Italy
2. Gestione Ambulatoriale Politerapie (GAP) Outpatient Clinic, ASST Fatebenefratelli Sacco University Hospital, Milan, Italy
3. Unit of Clinical Pharmacology, ASST Fatebenefratelli Sacco University Hospital, Milan, Italy
4. Infectious Diseases Department, San Matteo Hospital Foundation, University of Pavia, Pavia, Italy