Review for 10.1186/s12876-017-0691-9 (2017)

Reviewer ’s report  
 
Title:  Minimally I nvasive Pancreaticoduodenectomy for Periampullary Disease: a 
Comprehensive Review of Literature and Meta -analysis of Outcomes Compared with Open 
Surgery  
 
Version: 0 Date: 02 Sep 2017 
 
Reviewer:  Giuseppe  Fanelli  
 
Reviewer’s report:  
 
The article and the aims of th e study are very investing and could have a great impact, however 
remain lots of limitations, as you have rightly stressed in the discussion.  
 
 
Anyway my concerns are about other minor questions:  
 
- there are lots of typos, please correct;  
 
- Fig. 9 is missing;  
 
- It would be better to avoid expression like: "And what's more..." and use a correct "scientific 
english".  
 
 
Thank  
 
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.  
 
Yes 
 
Are the conclusions drawn adequately supported by the data shown?  
If not, please explain in your comments to the authors.  
 
No 
 
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 aspects require further 
assessment in your comments to the editors.  
 
I am able to assess the statistics  
 
Qualit y 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:  
 
1. Have you in the past five years received reimbursements, fees, funding, or salary from an 
organisation that may in any way gain or lose financially from the publication of this 
manuscript, either now or in the future?  
 
2. Do you hold any stocks or shares in an organisation that may in any w ay gain or lose 
financially from the publication of this manuscript, either now or in the future?  
 
3. Do you hold or are you currently applying for any patents relating to the content of the 
manuscript?  
 
4. Have you received reimbursements, fees, funding, or sal ary from an organization that 
holds or has applied for patents relating to the content of the manuscript?  
 
5. Do you have any other financial competing interests?  
 
6. Do you have any non -financial competing interests in relation to this paper?  
 
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 declare that I have no competing interests  
 
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