1,000
Participants
Start Date
January 31, 2014
Primary Completion Date
December 31, 2014
Study Completion Date
December 31, 2014
Pronase
use pronase to improve visibility during endoscopical iodine staining
Control
No pronase plus Dimethicone and sodium bicarbonate. use without pronase to compare visibility during endoscopical iodiine staining
Xijing Hospital of Digestive Disease, Xi'an
Beijing Tide Pharmaceutical Co., Ltd
INDUSTRY
Xijing Hospital of Digestive Diseases
OTHER