Simultaneous measurement of progesterone receptors and DNA indices by flow cytometry: characterization of an assay in breast cancer cell lines.
Graham ML, Bunn PA, Jewett PB, Gonzalez-Aller C, Horwitz KB. Simultaneous measurement of progesterone receptors and DNA indices by flow cytometry: characterization of an assay in breast cancer cell lines. Cancer Res. 1989 Jul 15; 49(14):3934-42.