Practice guidelines on endoscopic surgery for qualified surgeons by the endoscopic surgical skill qualification system: Stomach. - Uyama, Ichiro; Shibasaki, Susumu; Inaki, Noriyuki; Ehara, Kazuhisa; Oshiro, Takashi; Okabe, Hiroshi; Obama, Kazutaka; Kasama, Kazunori; Kinoshita, Takahiro; Kurokawa, Yukinori; Kojima, Kazuyuki; Shiraishi, Norio; et al. (Asian Journal of Endoscopic Surgery, 2024)