Review for 10.1186/s12876-020-01454-1 (2020)

Reviewer’ s report
Title: The Effect of Prophylactic Hemoclip Placement and Risk Factors of Delayed Post-
polypectomy Bleeding in Polyps Sized 6 to 20 Millimeters: A Propensity Score MatchingAnalysis
Version: 0Date: 23 Jun 2020
Reviewer's report:
This manuscript addresses an important clinical issue of endoscopic management for delayed post-
polypectomy bleeding.However, there are some crucial limitations because of retrospective study as authors mentioned inDISCUSSION section.Then, I think it better to describe some limitations in more detail.
- The management for anti thrombotic agent is very important. Hence not only the cessation of
medication, but also timing of the resumption. Is there guideline or management plan based oncustomary clinical practice?
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NoAre the methods appropriate and well described?
If not, please specify what is required in your comments to the authors.
YesDoes the work include the necessary controls?
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Yes
Are the conclusions drawn adequately supported by the data shown?
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YesAre you able to assess any statistics in the manuscript or would you recommend an
additional statistical review?
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assessment in your comments to the editors.
I recommend additional statistical reviewQuality of written English
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AcceptableDeclaration of competing interests
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