EpCAM, DAPICK19, HER2, EP, PR and MUC1 (used for breast cancer diagnosis); PSA, AR, EGR and PTEN (used for prostate cancer diagnosis); CK, ASGPR1, N-cadherin, Vimentin, Gpc3, AFP and albumin (used for hepatocellular carcinoma diagnosis). The gene discussed is KLK3; the disease is breast cancer.