“…Various approaches to educating new and inexperienced surgeons regarding ES have been reported, including the use of textbooks, published papers, videos, simulators, surrogate animals, and cadavers [7,8]. Among them, highquality videos of ES procedures, which allow surgeons to watch an operation recorded in progress, have great potential to enhance surgical education [9][10][11][12]. The conference, in which expert surgeons review ES videos and instruct the precise procedure to the audience, could not only improve the trainee's surgical skill and knowledge, but educate the conference participants as well.…”