Ifesemen, O., McWilliams, D. F., Ferguson, E., Wakefield, R., Akin-Akinyosoye, K., Wilson, D., Platts, D., Ledbury, S., & Walsh, D. A. (2021). Central Aspects of Pain in Rheumatoid Arthritis (CAP-RA): protocol for a prospective observational study. BMC Rheumatology, 5(1), Article 23. https://doi.org/10.1186/s41927-021-00187-2