Review for 10.1186/s12876-017-0626-5 (2017)

Reviewer ’s report  
 
Title: Therapeutic outcomes of endoscopic papillectomy for ampullary neoplasms: retrospective  
analysis of a multicenter study  
 
Version: 0 Date: 06 Feb 2017  
 
Reviewer: Etem Alhan  
 
Reviewer's report:  
 
Dera Authors,  
 
 
The complication rate was 31% with 2%  such as perforation, bleeding or pancreatitis.  
 
In conclusion wrote safe method. This can be change with appropriate words  
 
 
Sincerely  
 
 
 
 
Are the methods appropriate and well described?  
If not, please  specify what is required in your comments to the authors.  
 
Yes 
 
Does the work include the necessary controls?  
If not, please specify which controls are required in your comments to the authors.  
 
No 
 
Are the conclusions drawn adequately supported by the data shown?  
If not, please explain in your comments to the authors.  
 
Yes 
 
Are you able to assess any statistics in the manuscript or would you recommend an  
additional statistical review?  
If an additional statistical review is recommended, please specify what aspe cts require further  
assessment in your comments to the editors.  
 
I am able to assess the statistics  
 
Quality of written English  
Please indicate the quality of language in the manuscript:  
 
Needs some language corrections before being published  
 
 
 
 
Declaration of competing interests  
Please complete  a declaration of competing interests, considering the following questions:  
 
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organisation that may in any way gain or lose financially from the publication of this 
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financially from the publication of this manuscript, either now or in the future?  
 
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manuscript?  
 
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5. Do you have any other financial competin g interests?  
 
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If you can answer no to all of the above, write 'I declare that I have no competing interests' 
below. If your reply is yes to any, please give details below.  
 
'I dec lare that I have no competing interests' below  
 
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I agree to the open peer review policy of the journal