The prognostic significance of estradiol (ER) and progesterone receptors (PgR) for survival from relapse has been studied in two groups of breast cancer patients: group 1, 35 patients in whom receptor levels were measured at the time of mastectomy; group II, 49 patients in whom receptor levels were measured at the time of recurrence. ER+ (greater than 10 fmoles/mg) patients had a better survival from relapse than ER- patients. High levels of PgR (greater than 50 fmoles/mg) had a prognostic significance only in group II patients.

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http://dx.doi.org/10.1007/BF01805988DOI Listing

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