309
Participants
Start Date
January 17, 2019
Primary Completion Date
December 30, 2022
Study Completion Date
March 31, 2023
Neomycin,metronidazole
Orally intake neomycin 1g and metronidazole 0.2g four times before surgery
The Third Affiliated Hospital of Sun Yat-Sen university, Guanzhou
Third Affiliated Hospital, Sun Yat-Sen University
OTHER