(2) The MMP-9 expression ratio in the multiple locations group (96.3%) was higher than that in the single location group (71.4%), in the clinical stage III-IV group (100%) than that in the clinical stage I-II group (79.2%), and in the >3 cm tumor size group that in the ≤3 cm group (96% vs. 75%, P < 0.05). This evidence concerns the gene MMP9 and neoplasm.