783
Participants
Start Date
May 1, 2018
Primary Completion Date
January 1, 2019
Study Completion Date
April 1, 2022
No intervention
This is an observational study without any intervention.
Department of Biliary and Pancreatic Surgery, Tongji Hospital, Affiliated Tongji Medical College, Huazhong University of Science and Technology, Wuhan
Renyi Qin
OTHER