No significant differences were observed in the percentages of IL-24–producing B10 cells (Figure 4A) and IL-24 producing B10 cells among CD19+CD27+CD24hi cells (Figure 4B), as well as IL-24 expression in these cells (Figure 4C) between healthy and endometriosis-positive groups (all p > 0.05). Here, CD27 is linked to endometriosis.