Review for 10.1186/s12876-019-1101-2 (2019)

Reviewe r’s report  
 
Title: Human gastric magnet -controlled capsule endoscopy co nducted in a standing position: 
The phase 1 study  
 
Version: 2 Date: 24 Sep 2019  
 
Reviewer: Zhuan Liao  
 
Reviewer's report:  
 
The response and revised manuscript entitled "Human gastric magnet -controlled capsule 
endoscopy conducted in a standing position: The phase 1 study" has been reviewed.  
 
The work after this revision can be accepted.  
 
In the Methods section it would be appropriate to know the specific movement form of 
manipulating magnet and the relationship be tween magnetic ball movement and capsule 
movement.  
 
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 sp ecify 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.  
 
Yes 
  
Are you able to assess any statistics in the manus cript or would you recommend an 
additional statistical review?  
If an additional statistical review is recommended, please speci fy what aspects require further 
assessment in your comments to the editors.  
 
I recommend additional statistical review  
 
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:  
 
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 organi sation that may in any way 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 reimbursement s, fees, funding, or salary from an organization that 
holdsor 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 pa per? 
 
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  
 
I agree to the open peer review policy of the journal. I unde rstand that my name will be included 
on my report to the authors and, if the manuscript is accepted for publication, my named report 
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to the editors, which will not be published.  
 
I agree to the open peer review policy of the journal