@article{oai:twinkle.repo.nii.ac.jp:00025248, author = {AOYAMA, Shota and INOUE, Yuji and OHKI, Takeshi and ITABASHI, Michio and YAMAMOTO, Masakazu}, issue = {1}, journal = {BMC Surgery}, month = {}, title = {Usefulness of the endoscopic surgical skill qualification system in laparoscopic colorectal surgery: short-term outcomes: a single-center and retrospective analysis}, volume = {19}, year = {2019} }