The anti ER/PR Kit is a semi-quantitative immunohistochemical (IHC) assay to identify the progesterone (PR) and estrogen (ER) expressions in formalin-fixed, paraffin-embedded human breast cancer tissue specimens. Results from the ER/PR test is indicated as an aid in the assessment of the hormones status of breast cancer patients. While the ER/PR kit provides the antibodies that offer direct visualization and semi-quantification of the protein expression through a brightfield microscope, the GenASIs GoPath system is designed to complement the routine workflow of the pathologist in the review of immunohistochemically stained histologic slides.