Review for 10.1186/s12876-021-01807-4 (2021)

Reviewer’s report
Title: 
Surgical resection significantly promotes the overall survival of patients
with hepatocellular carcinoma: a propensity score matching analysis
Version: 
1 
Date: 
17 Apr 2021
Reviewer's report:
The authors responded successfully to the reviewer's comments. 
The reviewer
has no other comments for the revised manuscript.
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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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