WFDC2 and neoplasm: The plasma levels of mentioned above cytokine and tumor markers were also significantly different in the advanced stages (III-IV) than those found in the early stages (I-II): VEGF, CA125 in comparison of stage III with stage I (p = 0.0440; p < 0.001) and with II (p = 0.0430; p = 0.0028) or HE4, CA125 in comparison of stage IV with I (p < 0.001; p = 0.0032) and II (p = 0.0036; p = 0.0079) of tumor advancement.