Review for 10.1186/s12876-021-01715-7 (2021)

Reviewer’s report
Title: 
Very-Low-Dose Aspirin and Surveillance Colonoscopy is Cost-effective
in Secondary Prevention of Colorectal Cancer in Individuals with Advanced
Adenomas: Network Meta-analysis and Cost-effectiveness Analysis
Version: 
0 
Date: 
21 Jan 2021
Reviewer's report:
Chemoprophylaxis of colorectal cancer is current of interests. We have seen
quiet some good results over the last years.
This is a nice piece work. I congratulate the authors for this good 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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Are the methods sufficiently described to allow the study to be repeated?
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Is the presentation of the work clear?
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Are the images in this manuscript (including electrophoretic gels and blots) free
from apparent manipulation?
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