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. Author manuscript; available in PMC: 2014 Mar 27.
Published in final edited form as: Am J Transplant. 2013 Jun 13;13(7):1859–1870. doi: 10.1111/ajt.12287

Figure 1. Laboratory variance for single antigen assays using standardized operating procedures versus non-standardized procedures.

Figure 1

Comparisons of %CV in MFI distributions (depicted as boxplots) from 5 centers testing SA1 (first three plots) and SA2 (second three plots) kits with CTOT materials processed under SOP (Lot1 Inline graphic and Lot2 Inline graphic) or with ASHI Proficiency Test materials processed under iHOP (□).