Fig. 1. Histograms of median fluorescent intensity (MFI) ratio of 25 negative sera to negative control (NC). (A) T cell, non-pronase, tested with own laboratory NC (Lab NC). (B) B cell, pronase, tested with Lab NC. (C) T cell, non-pronase, tested with common NC (Korean Organ Donation Center [KODA] NC). (D) B cell, pronase, tested with KODA NC. Abbreviation: SD, standard deviation.

Lab Med Qual Assur 2022;44:204~211 https://doi.org/10.15263/jlmqa.2022.44.4.204

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