34 Tsakogiannis Tsakogiannis D D Kalogera Kalogera E E Zagouri Zagouri F F Zografos Zografos E E Balalis Balalis D D Bletsa Bletsa G G Determination of FABP4, RBP4 and the MMP-9/NGAL Complex in the Serum of Women with Breast Cancer Determination of FABP4, RBP4 and the MMP-9/NGAL Complex in the Serum of Women with Breast Cancer Oncol Lett Oncol Lett 2021 2021 21 21 2 2 85 85 10.3892/ol.2020.12346 10.3892/ol.2020.12346. Here, MMP9 is linked to breast cancer.