Saini Saini S S PSA and beyond: alternative prostate cancer biomarkers PSA and beyond: alternative prostate cancer biomarkers Cell Oncol Cell Oncol 2016 2016 39 39 97 97 106 106 10.1007/s13402-016-0268-6 10.1007/s13402-016-0268-6. This evidence concerns the gene KLK3 and Familial prostate cancer.