31
Participants
Start Date
May 8, 2020
Primary Completion Date
December 23, 2021
Study Completion Date
April 16, 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
Tongji Hospital
OTHER