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Ratio of SFRP4 expression. In four cases of normal uterine smooth muscle and three cases of uterine LMS, the number of cells stained was measured, and the ratio of the area was measured. SFRP4 expression in leiomyosarcoma was significantly lower than that in normal smooth muscle. *P=0.03 vs. normal uterine smooth muscle. SFRP, secreted frizzled-related protein; LMS, leiomyosarcoma.
