Porcaro, A. B.; Caruso, B.; Terrin, A.; De Luyk, N.; Cacciamani, G.; Corsi, P.; Inverardi, D.; De Marchi, D.; Baldassarre, R.; Cerruto, M.; Ghimenton, C.; Brunelli, M.; Zecchini Antoniolli, S.; Petrozziello, A.; Artibani, W. The Preoperative Serum Ratio of Total Prostate Specific Antigen (PSA) to Free Testosterone (FT), PSA/FT Index Ratio, and Prostate Cancer. Results in 220 Patients Undergoing Radical Prostatectomy. Arch Ital Urol Androl 2016, 88, 17-22.