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MLA Citation
Guillermo J Pons-Estel et al.. “289 Comparison of ACR 1982/1997 and EULAR/ACR classification criteria for systemic lupus erythematosus in two multiethnic cohorts.” Lupus science & medicine, vol. 6, n.d., pp. A209–A210. http://access.bl.uk/ark:/81055/vdc_100144725091.0x000001