Review for 10.1186/s12876-021-01812-7 (2021)

Reviewer’s report
Title: 
GRANULOMATOUS COLITIS IN A PATIENT WITH METASTATIC
MELANOMA UNDER IMMUNOTHERAPY A case report and literature
review
Version: 
1 
Date: 
03 May 2021
Reviewer's report:
It is unfortunate that the authors cannot provide the endoscopic pictures.
However, the authors have addressed all other comments.
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Is the study design appropriate to answer the research question (including the use
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