Role of 68Ga-PSMA PET/CT after radical prostatectomy in patients with biochemical recurrence: Results of a monocentric retrospective study oleh A. Pecoraro, D.L. Stefano, E. Checcucci, D. Amparore, E. Cisero, S. De Cillis, A. Piana, F. Piramide, S. Granato, M. Sica, M. Manfredi, C. Fiori, C. Poti, F. Porpiglia