1. Rheumatology and Clinical Immunology, Humanitas Clinical and Research Center – IRCCS, Rozzano, Milan, Italy
2. Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, Botnar Research Center, University of Oxford
3. Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, Milan, Italy
4. Laboratory of Microbiology and Virology, IRCCS San Raffaele Scientific Institute, Milan, Italy
5. Biomedical Science Department, Humanitas University, Pieve Emanuele, Milan, Italy