FRI0215 Comparative efficacy and retention rate of tocilizumab and tnf inhibitors used in combination with methotrexate as first-line biologic therapy in rheumatoid arthritis: data from a multicentre observational registry
FRI0215 Comparative efficacy and retention rate of tocilizumab and tnf inhibitors used in combination with methotrexate as first-line biologic therapy in rheumatoid arthritis: data from a multicentre observational registry