120
Participants
Start Date
April 30, 2015
Primary Completion Date
May 31, 2016
Study Completion Date
December 31, 2016
assistance of a transparent cap
Patients will receive endoscopic injection of lauromacrogol with assistance of a transparent cap.
without a transparent cap
Patients will receive routine endoscopic injection of lauromacrogol without use of transparent cap.
Zhongshan Hospital, Shanghai
Shanghai Zhongshan Hospital
OTHER