3,238
Participants
Start Date
April 15, 2021
Primary Completion Date
June 20, 2023
Study Completion Date
August 10, 2023
Surgery
We referr to resection as that performed in our hospital, and history of major abdominal surgery as interventional surgical procedures in the abdomen with therapeutic intent (e.g., resection) prior to the first hospitalization in our hospital.
Ruijin Hospital, Shanghai
Ruijin Hospital
OTHER