Study population
ONCOLOGY, SILS
From April 2014 and July 2016, a total of 198 patients were randomly assigned to the SILS + 1 group or the CLS group (99 per group) (Fig. 
Consort diagram. SILS + 1, single-incision plus one-port laparoscopic surgery; CLS, conventional laparoscopic surgery
Patient baseline characteristicsAbbreviation: CLS, conventional laparoscopic surgery; SILS + 1, single-incision plus one-port laparoscopic surgery; BMI, body mass index; ECOG Eastern Cooperative Oncology Group; ASA, American Society of Anesthesiologists;
Surgical Procedure and Pathologic OutcomesContinuous variables are described as the mean ± standard deviation (range); categorical variables are described as n (%)Abbreviation: TNM, tumor-node-metastasis; LN, lymph node,