Figure 4From: Plasma levels of the MMP-9:TIMP-1 complex as prognostic biomarker in breast cancer: a retrospective study Univariate survival analysis of disease free survival (DFS) in plasma for all 465 patients. A) MMP-9:TIMP-1 measured by ELISA. B) MMP-9:TIMP-1 measured by PLA. Patients are divided into four groups of equal size (Q1-Q4) according to increasing plasma MMP-9:TIMP-1 levels; Q1 being the group with the lowest level.Back to article page