Additionally, keyword analysis of retracted articles in the field of oncology was performed, and the keywords were divided into 13 clusters, namely “pancreatic cancer” (#0), “hepatocellular carcinoma " (#1), “management” (#2), “prostate cancer” (#3), “breast cancer " (#4), “tumor suppressor” (#5), “metadherin” (#6), “gene expression " (#7), “epithelial-mesenchymal transition” (#8), “myocardial infarction” (#9), “tumor targeting” (#10), “activation” (#11), and “epithelial ovarian cancer " (#12). This evidence concerns the gene MTDH and breast carcinoma.