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Additional file 1 of Symptoms in first-degree relatives of patients with rheumatoid arthritis: evaluation of cross-sectional data from the symptoms in persons at risk of rheumatoid arthritis (SPARRA) questionnaire in the PRe-clinical EValuation of Novel Targets in RA (PREVeNT-RA) Cohort. (2021)
Costello, Ruth E., Humphreys, J. H., Sergeant, J. C., Haris, M., Stirling, F., Raza, K., van Schaardenburg, D., Bruce, Ian N.