Review for 10.1186/s12876-020-01570-y (2020)

Reviewer’s report
Title: 
Relationship between angiography timing and angiographic visualization of extravasation in
patients with acute non-variceal gastrointestinal bleeding
Version: 
3 
Date: 
13 Nov 2020
Reviewer's report:
The authors have understood my comments and conducted the revisions. I am glad to recommend its
publication, because the current explanations and results are reasonable. Indeed, I would like to expect the
authors to further compare the role of conservative therapy alone versus in combination with blinded
embolization in patients without angiographic visualization of extravasation in future study.
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Is the study design appropriate to answer the research question (including the use of appropriate controls),
and are the conclusions supported by the evidence 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 (including electrophoretic gels and blots) free from apparent
manipulation?
Yes