Reviewer ’s report  
 
Title: Underwater versus conventional endoscopic mucosal resection  for small size 
nonpedunculated colorectal polyps ：A randomized controlled trial  
 
Version: 1 Date: 21 Jul 2020  
 
Reviewer: Arnaldo Amato  
 
Reviewer's report:  
 
The Authors addressed all my suggestions.  
I think the paper is now worthy of publication  
 
Publons Reviewer Recognition . Springer Nature can send verifica tion of this review directly to 
Publons (a subsidiary of Clarivate Analytics). If you wou ld like to take advantage of this service, 
please click on the “Yes” option below. Your name, email  address, title of the reviewed 
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Publons and you as a reviewer, carefully considering the s ensitivity of such infor mation. For 
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Please find the details of processing in Publons ’ privacy policy https://publons.com/about/terms  
 
Yes 
 
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.  
 
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 am able to assess the statistics  
 
Quality of written English  
Please indicate the quality of language in the manuscript:  
 
Acceptable  
 
Declaration of competing interests  
Please complete a declaration of competing interests, considering the following questions:  
 
1.  Have you in the past five year s received reimbursements, f ees, funding, or salary 
from an organisation that may in any way gain or lose financial ly 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 a ny 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 reimbursements, fees, funding , or salary 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.  
 
No COI  
 
Reviewer Publication Consent. I agree for my report to be made  available under an Open 
Access Creative Commons CC -BY License ( http://creativecommons.org/licenses/by/4.0 ) if this 
manuscript is accepted for publication. Any comments that I do not wish to be included in the 
published report have been included as confidential comments to the editor, which  will not be 
published.  If you are not happy for us to publish this report, please contact the edi torial office 
before completing the review.  If you wish, you can include your name in your published report. 
Please note you must  decide whether to include your  name at the start of the process and confirm 
this decision whenever  prompted. If you change your decision later, we will not be able to 
publish your name.  
 
I agree to the terms of the CC -BY 4.0 license; please publish my name with my report.  
Reviewer ’s report  
 
Title: Underwater versus conventional endoscopic mucosal resection  for small size 
nonpedunculated colorectal polyps ：A randomized controlled trial  
 
Version: 1 Date: 21 Jul 2020  
 
Reviewer: Arnaldo Amato  
 
Reviewer's report:  
 
The Authors addressed all my suggestions.  
I think the paper is now worthy of publication  
 
Publons Reviewer Recognition . Springer Nature can send verifica tion of this review directly to 
Publons (a subsidiary of Clarivate Analytics). If you wou ld like to take advantage of this service, 
please click on the “Yes” option below. Your name, email  address, title of the reviewed 
manuscript, name of the journal, and date of your review submission (the “Review Data ”) will 
then be transmitted to Publons u pon publication of the manuscript.  If you have already registered 
at Publons, they will notify you of the receipt of this review and update your profile as per your 
settings and their policy. If you are not registered with Publons, you will receive an emai l from 
them asking you to register in order for them to be able to re cognize your review on your new 
profile page. Publons may use the Review Data to generate derivat ive metadata for the benefit of 
Publons and you as a reviewer, carefully considering the s ensitivity of such infor mation. For 
example, Publons may verify your record as a reviewer by updatin g your profile published on its 
webservice if you have registered for such service or help editors t o identify candidate reviewers. 
Please find the details of processing in Publons ’ privacy policy https://publons.com/about/terms  
 
Yes 
 
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.  
 
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 am able to assess the statistics  
 
Quality of written English  
Please indicate the quality of language in the manuscript:  
 
Acceptable  
 
Declaration of competing interests  
Please complete a declaration of competing interests, considering the following questions:  
 
1.  Have you in the past five year s received reimbursements, f ees, funding, or salary 
from an organisation that may in any way gain or lose financial ly 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 a ny 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 reimbursements, fees, funding , or salary 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.  
 
No COI  
 
Reviewer Publication Consent. I agree for my report to be made  available under an Open 
Access Creative Commons CC -BY License ( http://creativecommons.org/licenses/by/4.0 ) if this 
manuscript is accepted for publication. Any comments that I do not wish to be included in the 
published report have been included as confidential comments to the editor, which  will not be 
published.  If you are not happy for us to publish this report, please contact the edi torial office 
before completing the review.  If you wish, you can include your name in your published report. 
Please note you must  decide whether to include your  name at the start of the process and confirm 
this decision whenever  prompted. If you change your decision later, we will not be able to 
publish your name.  
 
I agree to the terms of the CC -BY 4.0 license; please publish my name with my report.  
Please review this paper.
user
Reviewer ’s report  
 
Title: Underwater versus conventional endoscopic mucosal resection  for small size 
nonpedunculated colorectal polyps ：A randomized controlled trial  
 
Version: 1 Date: 21 Jul 2020  
 
Reviewer: Arnaldo Amato  
 
Reviewer's report:  
 
The Authors addressed all my suggestions.  
I think the paper is now worthy of publication  
 
Publons Reviewer Recognition . Springer Nature can send verifica tion of this review directly to 
Publons (a subsidiary of Clarivate Analytics). If you wou ld like to take advantage of this service, 
please click on the “Yes” option below. Your name, email  address, title of the reviewed 
manuscript, name of the journal, and date of your review submission (the “Review Data ”) will 
then be transmitted to Publons u pon publication of the manuscript.  If you have already registered 
at Publons, they will notify you of the receipt of this review and update your profile as per your 
settings and their policy. If you are not registered with Publons, you will receive an emai l from 
them asking you to register in order for them to be able to re cognize your review on your new 
profile page. Publons may use the Review Data to generate derivat ive metadata for the benefit of 
Publons and you as a reviewer, carefully considering the s ensitivity of such infor mation. For 
example, Publons may verify your record as a reviewer by updatin g your profile published on its 
webservice if you have registered for such service or help editors t o identify candidate reviewers. 
Please find the details of processing in Publons ’ privacy policy https://publons.com/about/terms  
 
Yes 
 
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.  
 
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 am able to assess the statistics  
 
Quality of written English  
Please indicate the quality of language in the manuscript:  
 
Acceptable  
 
Declaration of competing interests  
Please complete a declaration of competing interests, considering the following questions:  
 
1.  Have you in the past five year s received reimbursements, f ees, funding, or salary 
from an organisation that may in any way gain or lose financial ly 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 a ny 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 reimbursements, fees, funding , or salary 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.  
 
No COI  
 
Reviewer Publication Consent. I agree for my report to be made  available under an Open 
Access Creative Commons CC -BY License ( http://creativecommons.org/licenses/by/4.0 ) if this 
manuscript is accepted for publication. Any comments that I do not wish to be included in the 
published report have been included as confidential comments to the editor, which  will not be 
published.  If you are not happy for us to publish this report, please contact the edi torial office 
before completing the review.  If you wish, you can include your name in your published report. 
Please note you must  decide whether to include your  name at the start of the process and confirm 
this decision whenever  prompted. If you change your decision later, we will not be able to 
publish your name.  
 
I agree to the terms of the CC -BY 4.0 license; please publish my name with my report.  
assistant