Review for 10.1186/s12876-022-02138-8 (2022)

Reviewer’s report
Title: 
An extremely dangerous case of acute massive upper gastrointestinal
bleedingA case report
Version: 
2 
Date: 
31 Jan 2022
Reviewer's report:
Thank you for your kind response and revision. I think that the manuscript and
the figure have been revised well.
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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?
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