Rituximab versus tocilizumab and B-cell status in TNF-alpha inadequate-responder rheumatoid arthritis patients: the R4-RA RCT - Humby, F; Durez, P; Buch, MH; Lewis, MJ; Bombardieri, M; John, C; Rizvi, H; Warren, L; Peel, J; Fossati-Jimack, L; Hands, RE; Giorli, G; et al. (Efficacy and Mechanism Evaluation, 2022)