360
Participants
Start Date
January 20, 2015
Primary Completion Date
December 20, 2019
Study Completion Date
January 31, 2023
laparoscopic surgery
Patients over 70 years old underwent laparoscopic or laparotomic colorectal resection were enrolled.
Third Affiliated Hospital of Sun-Yat sen University, Guangzhou
Third Affiliated Hospital, Sun Yat-Sen University
OTHER