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. Author manuscript; available in PMC: 2014 Feb 1.
Published in final edited form as: Breast Cancer Res Treat. 2013 Jan 4;137(3):773–782. doi: 10.1007/s10549-012-2398-5

Fig. 1.

Fig. 1

4-point scoring system for ABCB1, ABCC1, ABCC11, and ABCG2 protein expression. Our tissue microarray contained 281 breast tumor tissues, and was stained with antibodies against ABCB1 (1:100), ABCC1 (1:40), ABCC11 (1:500), and ABCG2 (1:100). Stain intensity was graded as negative (0), weak (1), moderate (2), or strong (3). Representative images are shown under high magnification. Scale bar: 50 μm.