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. Author manuscript; available in PMC: 2011 Mar 30.
Published in final edited form as: Oncogene. 2010 Jul 19;29(39):5359–5369. doi: 10.1038/onc.2010.274

Fig. 2. A subset of PRL-induced mammary cancers expresses the estrogen receptor α.

Fig. 2

Immunohistochemistry of ERα in various mammary tumors (a-c) and the normal mammary epithelium (d); a, ERα-positive tumor, b, mixed lesion containing a subset of ERα-positive cells, c, ERα-negative cancer. Panel e shows a serial section of the mammary duct shown in panel d that was stained without the primary antibody against ERα. All slides were counterstained with hematoxylin (bar, 50 μm).