“…However, we believe that relevant works were erroneously excluded, specifically 3 peerreviewed manuscripts presenting nonspecialtyspecific surgical assessment tools and 2 publications involving urological procedures, ie, robot-assisted radical prostatectomy and robot-assisted partial nephrectomy. [2][3][4][5][6][7] The papers describe performance metrics developed according to the rigorous process codified by the proficiency-based progression (PBP) training methodology. 8 As the first step, a core team of experts characterize the procedure/task, identifying its phases and operationally defined procedure events (ie, steps, errors, and critical errors).…”