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The patient's red cell eluate initially was unidentifiable, reacting weakly with only two panel cells that did not fit a pattern. Once anti-Jka was identified, a check of the eluate panel results showed that both reactive cells were Jk(a+b-), circled in red in the image on the right, but two other Jk(a+b-) panel cells did not react, circled in blue in the image.

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