MP57-06 EXTERNAL VALIDATION AND COMPARISON OF TWO NOMOGRAMS PREDICTING THE PROBABILITY OF LYMPH NODE INVASION IN PATIENTS SUBJECTED TO ROBOTIC RADICAL PROSTATECTOMY AND CONCOMITANT LYMPH NODE DISSECTION. (May 2022) - Frego, Nicola; Marco, Paciotti; Maffei, Davide; Avolio, Pier Paolo; Contieri, Roberto; Uleri, Alessandro; Lazzeri, Massimo; Saita, Alberto; Casale, Paolo; Buffi, Nicolò Maria; Lughezzani, Giovanni