Loeb S, Vonesh EF, Metter EJ, Carter HB, Gann PH, and Catalona WJ. “What is the true number-needed-to-screen and treat to save a life with prostate-specific antigen (PSA) testing?” Journal of Clinical Oncology January 2011; 29: 464. Link: http://www.ncbi.nlm.nih.gov/pubmed/21189374 Although number needed to screen (NNS) and number needed to treat (NNT) are useful statistics to… Read More