PD40-12 ROBOTIC-ASSISTED ELECTROMAGNETIC GUIDANCE MINIMIZES RADIATION EXPOSURE IN GAINING PERCUTANEOUS ACCESS FOR NEPHROLITHOTOMY: A CADAVERIC STUDY WITH NOVICES. (May 2022) - Humphreys, Mitchell; Wymer, Kevin; Chew, Ben; Zhen, Janet; Elkhoury, Fuad; Sivalingam, Sri; Dunn, Matthew; Borofsky, Michael