Review for 10.1186/s12876-021-01970-8 (2021)

Reviewer’s report
Title: 
A rare variation of duplicated portal vein: left branch derived from splenic
vein mimicking cavernous transformation
Version: 
1 
Date: 
08 Oct 2021
Reviewer: 
Maria Ângela Bellomo-Brandão
Reviewer's report:
The article is very interesting,
I approve the latest version
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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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Are the methods sufficiently described to allow the study to be repeated?
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Are the images in this manuscript (including electrophoretic gels and blots) free
from apparent manipulation?
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