Seo HS, et al. - In this work, the present study explored the feasibility of right-side approach-duet (R-duet) totally laparoscopic distal gastrectomy using a three-port compared with a four- or five-port. Findings suggested R-duet totally laparoscopic distal gastrectomy as a reliable form of reduced-port surgery when used to treat gastric cancer; no special instruments were required.