Review for 10.1186/s12876-020-01517-3 (2020)

Reviewer’s report
Title: 
Initial results from a multi-center population-based cluster randomized trial of esophageal and
gastric cancer screening in China
Version: 
0 
Date: 
01 Aug 2020
Reviewer: 
Gian Luca Baiocchi
Reviewer's report:
Please include all comments for the authors in this box rather than uploading your report as an attachment.
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Many compliments to the authors for an excellent ad informative paper!
Please only add discussion on:
1) possibilities of spreading screening strategy in western population (in the discussion)
2) value of diagnosis of pre-neoplastic (or potentially pre-neoplastic) conditions such as gastric atrophy.
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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?
Yes
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