Review for 10.1186/s12876-021-01731-7 (2021)

Reviewer’s report
Title: 
Oesophageal squamous cell carcinoma mimicking submucosal tumour
Version: 
1 
Date: 
11 Mar 2021
Reviewer's report:
Comment 1:
The description of microscopic magnification should be described in Figure 2
legend. 
Comment 2:
The word "Fig 3" cannot be found in your main body of manuscript, please
figure it out. 
Comment 3:
Strongly suggest that the quality of Fig 3 should be improved or at least use
arrow to figure out which layer the lesion comes from.
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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?
Yes
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Yes
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from apparent manipulation?
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