1. Department of Infectious Diseases, Gestione Ambulatoriale Politerapie (GAP) Outpatient Clinic ASST Fatebenefratelli Sacco University Hospital, Milan, Italy
2. Department of Laboratory Medicine, Unit of Clinical Pharmacology ASST Fatebenefratelli Sacco University Hospital, Milan, Italy
3. Department of Clinical Microbiology and Infectious Diseases, St Vincent’s Hospital, Sydney, Australia
4. Department of Infectious Diseases ASST Fatebenefratelli Sacco University Hospital, IIIrd Division of Infectious DiseasesMilan, Italy