Review for 10.1186/s12876-020-01529-z (2020)

Reviewer’s report
Title: 
Comparison of metastasis between early-onset and late-onset gastric signet
ring cell carcinoma
Version: 
1 
Date: 
23 Oct 2020
Reviewer's report:
This manuscript was much improved.
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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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from apparent manipulation?
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