Left Lower Transverse Incision versus Transumbilical Incision for Laparoscopic Specimen Extraction in Patients with Sigmoid and Rectosigmoid Colon Cancer. Issue 1 (January 2018) - Masubuchi, Shinsuke; Yamamoto, Masashi; Hamamoto, Hiroki; Ishii, Masatsugu; Inoue, Yoshihiro; Tanaka, Keitaro; Okuda, Junji; Uchiyama, Kazuhisa