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Autoantibodies against interleukin-1 receptor antagonist in multisystem inflammatory syndrome in children: a multicentre, retrospective, cohort study

InflammationRheumatologyMultisystem Inflammatory SyndromeAllergyAutoimmune DiseaseInterleukin-1 Receptor AntagonistImmunologyPediatricsChildhood ArthritisAutoimmunityAutoantibodiesPaediatric RheumatologyCohort StudyImmunologic DiseaseSclerodermaMedicineInflammatory DiseaseRheumatoid Arthritis