Review for 10.1186/s12876-021-01629-4 (2021)

Reviewer’s report
Title: 
Case series of aortoenteric fistula: A rare cause of gastrointestinal bleeding
Version: 
1 
Date: 
27 Dec 2020
Reviewer's report:
I read this manuscript after the first revision by two other reviewers.
After reading the original version and the corrected one, I can say that Authors
managed to improve the paper making it clear, well written and easily readable. 
The English language seems now adequate, having corrected the grammar and
syntax mistakes that were before the review.
The case series is now better described, having detailed some relevant point
which allow the reader a clear understanding of the cases. Authors accepted the
reviewers' suggestions and corrected the text improving it.
Also as concerns the description of clinical characteristics, diagnosis and
management strategies, Authors have now improved the manuscript, allowing
the reader to understand when to suspect such a rare and difficult condition, how
to diagnose it and what possible therapies.
Finally, figures and tables are 
now more readable. 
I have no further suggestions to give to the Authors and I believe that the
manuscript deserves publication on BMC Gastroenterology 
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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