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Intermediate precision of CLEIA-, Luminex-, and ELISA-based CSF Aβ42 measures. Across all concentrations, Aβ42CLEIA measures had lower CV than Aβ42Luminex or Aβ42ELISA (A). Further examination of the differences in CV (B) showed that Aβ42CLEIA had lower inter-assay CV than Aβ42Luminex at higher concentrations (∗), and Aβ42ELISA at all concentrations (∗∗).
