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Box plots of PET uptake differences (%) for 12 patients across 20 VOIs (A) and for 20 VOIs across 12 patients (B) between PET/CTAC and PET/MRAC (left, blue: ZTACUC; middle, red: ZTACSEC; right, black: ATAC). Tops and bottoms of each box are 25th and 75th percentiles of samples, respectively, with median and outlier (+ sign, >1.5 × interquartile range).
