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. 2020 May 11;146(1):89–100. doi: 10.1016/j.jaci.2020.05.003

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Fig 3 — PCA biplot of biomarkers on admission (A) or at end hospitalization (B). Samples are shown as dots and colored by outcomes (survivors and nonsurvivors). Biomarkers shown as lines with arrows. The configuration of biomarkers on biplot represented the relationship between variables and principal components. PC, Principal component; PCA, Principal-component analysis; PCT, procalcitonin.