1. Department of Biomedical Sciences for Health; University of Milan; Milan Italy
2. Unit of Clinical Epidemiology; IRCCS Galeazzi Orthopedic Institute; Milan Italy
3. IBD Center; Department of Gastroenterology; IRCCS Humanitas Research Hospital; Milan Italy
4. Department of Diagnostics, Clinical and Public Health Medicine; University of Modena and Reggio Emilia; Modena Italy
5. Laboratory of Drug Regulatory Policies; IRCCS Mario Negri Institute for Pharmacological Research; Milan Italy