Review for 10.1186/s12876-019-1113-y (2019)

Reviewer ’s report  
 
Title: Three cases of histologically proven hepatic epithelioid  hemangioendothelioma evaluated 
using a second -genera tion microbubble contrast medium in ultrasonography: case reports  
 
Version: 1 Date: 23 Oct 2019  
 
Reviewer: Guntars Pupelis  
 
Reviewer's report:  
 
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Are the methods appropriate and well described?  
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Yes 
 
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Yes 
 
Are the conclusions drawn adequately supported by the data shown?  
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Yes 
 
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Not relevant to this manuscript  
 
Quality of written English  
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Acceptable  
 
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