Review for 10.1186/s12876-020-01301-3 (2020)

Reviewer ’s report  
 
Title: Ischemic colitis induced by indigo naturalis in a patient with ulcerative colitis: A case 
report  
 
Version: 1 Date: 06 May 2020  
 
Reviewer: Peter Thelin Schmidt  
 
Reviewer's report:  
 
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Are the methods appropriate and well described?  
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Yes 
 
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Yes 
 
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Yes 
 
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Not relevant to this manuscript  
 
Quality of written English  
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Needs some language corrections before being published  
 
 
 
 
 
 
 
Declaration of competing interests  
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