1. “De Gasperis” Cardio Center; Niguarda Hospital; Milan Italy
2. Division of Infectious Diseases; Niguarda Hospital; Milan Italy
3. Emerging Bacterial Pathogens Unit; Division of Immunology, Transplantation and Infectious Diseases; IRCCS San Raffaele Scientific Institute; Milan Italy
4. Molecular Pathology Unit; Niguarda Hospital; Milan Italy
5. Department of Histopathology; Niguarda Hospital; Milan Italy
6. Division of Infection; Royal London Hospital; London UK