Figure 1From: Matrix metalloproteinase 1 and circulating tumor cells in early breast cancer MMP1 expression in primary breast tumors. Immunohistochemical reaction with anti-MMP1 monoclonal antibody. Original magnification × 400 visualisation with 3,3′-diaminobenzidine. a) staining intensity 0, b) staining intensity 1+, c) staining intensity 2+, d) staining intensity 3 + .Back to article page