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Fig. 1 | Autoimmunity Highlights

Fig. 1

From: The antinuclear antibody HEp-2 indirect immunofluorescence assay: a survey of laboratory performance, pattern recognition and interpretation

Fig. 1

Distribution of end-point titers for survey specimens reported by clinical laboratory (CL) participants. The frequency distributions of titer values for the 12 samples as reported by 16 CL participants is graphically illustrated. The number of CL reporting titer (1:40 to 1:10,240) for each AC-numbered specimen is shown, as well as the number of clinical labs that did not titer the specimen. The distance between vertical lines represents 10 participants

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