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APA Citation
Salgado, E., Maneiro, J., Carmona, L., & Gomez-Reino, J. (n.d.). aB0279 Rheumatoid factor and response to TNF antagonists in rheumatoid arthritis: Systematic review and meta-analysis of observational studies. Annals of the rheumatic diseases, 71, 653. http://access.bl.uk/ark:/81055/vdc_100137789957.0x00005a