Review for 10.1186/s12876-020-01457-y (2020)

Reviewer ’s report  
 
Title: Underwater versus conventional endoscopic mucosal resection for small si ze 
nonpedunculated colorectal polyps ：A randomized controlled trial  
 
Version: 1 Date: 14 Aug 2020  
 
Reviewer's report:  
 
None  
 
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No 
 
Declaration of competing interests  
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(default)  
 
Is the study design appropriate to answer the research question (i ncluding the use of appropriate 
controls), and are the conclusions supported by the evi dence presented?  
 
Yes 
 
Are the methods sufficiently described to allow the study to be repeated?  
 
Yes 
 
Is the use of statistics and treatment of uncertainties appropriate?  
 
Yes 
 
Is the presentation of the work clear?  
 
Yes 
 
Are the images in this manuscript (includ ing electrophoretic gel s and blots) free from apparent 
manipulation?  
 
Yes