Kudsi OY, Bou-Ayash N, Gokcal F, Crawford AS, Chung SK, Chudner A, Litwin D. Learning curve of robot-assisted transabdominal preperitoneal (rTAPP) inguinal hernia repair: a cumulative sum (CUSUM) analysis. Surg Endosc. 2022 03; 36(3):1827-1837.