cobas c 311; cobas c 501, 502,and COBAS INTEGRA 400 plus Analyzer/Module-RF interference claims for the sTfR assay Catalog Number: 20763454122
Tina-quant Soluble Transferrin Receptor (STFR) Assays Updated Claims for Rheumatoid Factors Interference
Nationwide
https://www.accessdata.fda.gov/scripts/ires/index.cfm?Product=Z-0108-2020