Review for 10.1186/s12876-020-01531-5 (2020)

Reviewer’s report
Title: 
HER2 gene assessment in liquid biopsy of gastric and esophagogastric
junction cancer patients qualified for surgery
Version: 
2 
Date: 
31 Oct 2020
Reviewer's report:
My comments to Authors:
I have read through the revised manuscript and the author's response to the
reviewer's inquiries, and I am satisfied with the revised manuscript. Thank you.
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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