Review for 10.1186/s12876-020-01534-2 (2020)

Reviewer’s report
Title: 
Narrow band imaging under less-air condition improves the visibility of
superficial esophageal squamous cell carcinoma
Version: 
1 
Date: 
16 Aug 2020
Reviewer: 
Ivan Kristo
Reviewer's report:
well adressed revision
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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 images in this manuscript (including electrophoretic gels and blots) free
from apparent manipulation?
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