Central Aspects of Pain in Rheumatoid Arthritis (CAP-RA): protocol for a prospective observational study.
Onosi Sylvia IfesemenDaniel F McWilliamsEamonn FergusonRichard WakefieldKehinde Akin-AkinyosoyeDeborah WilsonDorothy PlattsSusan LedburyDavid A WalshPublished in: BMC rheumatology (2021)
Clinicaltrials.gov NCT04515589 . Date of registration 17 August 2020.