Review for 10.1186/s12876-020-01511-9 (2020)

Reviewer’s report
Title: 
Linked Color Imaging Improves Visibility of Reflux Esophagitis
Version: 
3 
Date: 
06 Oct 2020
Reviewer's report:
This is well written and illustrated paper.
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Is the study design appropriate to answer the research question (including the use
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