Frequency of biologic switching and the outcomes of switching in children and young people with juvenile idiopathic arthritis: a national cohort study
Active joint count (71 joints)Baseline5·3 (0·5)5·0 (0·9)0·776 months2·3 (0·3)2·7 (0·8)0·61Difference** From time of initiation of second biologic to 6 months ...











