10.1371/journal.pone.0184400.g003 Sa Ra Lee Ra Lee Sunah Shim Sunah Shim Taeri Yu Taeri Yu Kyungah Jeong Kyungah Jeong Hye Won Chung Hye Won Chung Schematic drawing of an ergonomic surgical step stool designed to reduce physical discomfort in laparoendoscopic surgeons. Public Library of Science 2017 ergonomic MIS factor Operating table height Logistic regression analysis laparoscopic shoulder discomfort electrocautery activation switch surgery 2017-09-14 17:39:38 Figure https://plos.figshare.com/articles/figure/Schematic_drawing_of_an_ergonomic_surgical_step_stool_designed_to_reduce_physical_discomfort_in_laparoendoscopic_surgeons_/5408257 <p>Schematic drawing of an ergonomic surgical step stool designed to reduce physical discomfort in laparoendoscopic surgeons.</p>