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Fig. 1. Levels of serum immune markers for fatigued and nonfatigued breast cancer survivors. Fatigued survivors showed significantly higher levels of interleukin 1 receptor antagonist (IL-1ra), soluble tumor necrosis factor receptor II (sTNF-RII), and neopterin than nonfatigued survivors, controlling for relevant health behaviors (all p values < .05). The lower boundary of each box represents the 25th percentile, and the upper boundary represents the 75th percentile. The line inside each box represents the median. Lines outside each box extend to the largest and smallest observed values within 1.5 box lengths.
