Reviewer ’s report  
 
Title: Covered metallic stent for the treatment of malignant e sophageal fistula combined with 
stricture  
 
Version: 2 Date: 21 Jul 2020  
Reviewer's report:  
PEER REVIEWER ASSESSMENTS:  
 
OBJECTIVE - Full research articles: is there a clear objective that addres ses one or several 
testable research questions? (Brief or other article types: is there a clear objective?)  
Yes - there is a clear objective  
 
DESIGN - Is the current approach (including controls and analysis protocols) appropriate for the 
objective?  
Yes - the approach is appropriate  
 
EXECUTION - Are the experiments and analyses performed with sufficient technical rigor to 
allow confidence in the results?  
Yes - experiments and analyses were performed appropriately  
 
STATISTICS - Is the use of statistics in th e manuscript appropriate?  
Yes - appropriate statistical analyses have been used in the study  
 
INTERPRETATION - Is the current interpretation/discussion of the results reasonable and not 
overstated?  
Yes - the author's interpretation is reasonable  
 
OVERALL MANUSCRIPT POTENTIAL - Has the author addressed your concerns sufficiently 
for you to now recommend the work as a technically sound contribution? If not, can further 
revisions be made to make the work technically sound?  
Yes - current version is tec hnically sound  
 
PEER REVIEWER COMMENTS:  
 
GENERAL COMMENTS: Yes, they have responded adequately and made the appropriate 
changes. The manuscript has improved in quality  
ADDITIONAL REQUESTS/SUGGESTIONS:  
no further comments  
 
Publons Reviewer Recognition . Springer Nature can send verification of this review directly to  
Publons (a subsidiary of Clarivate Analytics). If you would 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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then be transmitted to Publons upon 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 email 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 derivative metadata for the benefit of  
Publons and you as a reviewer, carefully considering the sensitivity of such inf ormation. For 
example, Publons may verify your record as a reviewer by updating your profile published on its  
webservice if you have registered for such service or help editors to identify candidate reviewers.  
Please find the details of processing in Publo ns’ privacy policy https://publons.com/about/terms  
 
No 
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 t he 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:  
 
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, f ees, funding, or salary from an 
organisation that may in any way gain or lose financially from the public ation of this 
manuscript, either now or in the future?  
 
2. Do you hold any stocks or shares in an organisation t hat 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 curre ntly 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 in terests' 
below. If your reply is yes to any, please g ive details below.  
 
This reviewer has been recruited by a partner organization, Research Squar e. Reviewers w ith 
declared or apparent competing interests are not utilized for t hese reviews. This reviewer has 
agreed to publication of their comments online under a Creat ive Commons Attribution License 
attributed to Research Square and was paid a small honorarium for  completing the review within 
a specified timeframe. Honoraria for reviews such as this are paid regardless of the reviewer 
recommendation.  
 
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  editorial office 
before completing the review.If you wish, you can include your name in your publish ed 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 do not publish my name with my report.  
(default)  
Reviewer ’s report  
 
Title: Covered metallic stent for the treatment of malignant e sophageal fistula combined with 
stricture  
 
Version: 2 Date: 21 Jul 2020  
Reviewer's report:  
PEER REVIEWER ASSESSMENTS:  
 
OBJECTIVE - Full research articles: is there a clear objective that addres ses one or several 
testable research questions? (Brief or other article types: is there a clear objective?)  
Yes - there is a clear objective  
 
DESIGN - Is the current approach (including controls and analysis protocols) appropriate for the 
objective?  
Yes - the approach is appropriate  
 
EXECUTION - Are the experiments and analyses performed with sufficient technical rigor to 
allow confidence in the results?  
Yes - experiments and analyses were performed appropriately  
 
STATISTICS - Is the use of statistics in th e manuscript appropriate?  
Yes - appropriate statistical analyses have been used in the study  
 
INTERPRETATION - Is the current interpretation/discussion of the results reasonable and not 
overstated?  
Yes - the author's interpretation is reasonable  
 
OVERALL MANUSCRIPT POTENTIAL - Has the author addressed your concerns sufficiently 
for you to now recommend the work as a technically sound contribution? If not, can further 
revisions be made to make the work technically sound?  
Yes - current version is tec hnically sound  
 
PEER REVIEWER COMMENTS:  
 
GENERAL COMMENTS: Yes, they have responded adequately and made the appropriate 
changes. The manuscript has improved in quality  
ADDITIONAL REQUESTS/SUGGESTIONS:  
no further comments  
 
Publons Reviewer Recognition . Springer Nature can send verification of this review directly to  
Publons (a subsidiary of Clarivate Analytics). If you would 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 upon 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 email 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 derivative metadata for the benefit of  
Publons and you as a reviewer, carefully considering the sensitivity of such inf ormation. For 
example, Publons may verify your record as a reviewer by updating your profile published on its  
webservice if you have registered for such service or help editors to identify candidate reviewers.  
Please find the details of processing in Publo ns’ privacy policy https://publons.com/about/terms  
 
No 
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 t he 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:  
 
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, f ees, funding, or salary from an 
organisation that may in any way gain or lose financially from the public ation of this 
manuscript, either now or in the future?  
 
2. Do you hold any stocks or shares in an organisation t hat 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 curre ntly 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 in terests' 
below. If your reply is yes to any, please g ive details below.  
 
This reviewer has been recruited by a partner organization, Research Squar e. Reviewers w ith 
declared or apparent competing interests are not utilized for t hese reviews. This reviewer has 
agreed to publication of their comments online under a Creat ive Commons Attribution License 
attributed to Research Square and was paid a small honorarium for  completing the review within 
a specified timeframe. Honoraria for reviews such as this are paid regardless of the reviewer 
recommendation.  
 
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  editorial office 
before completing the review.If you wish, you can include your name in your publish ed 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 do not publish my name with my report.  
(default)  
Please review this paper.
user
Reviewer ’s report  
 
Title: Covered metallic stent for the treatment of malignant e sophageal fistula combined with 
stricture  
 
Version: 2 Date: 21 Jul 2020  
Reviewer's report:  
PEER REVIEWER ASSESSMENTS:  
 
OBJECTIVE - Full research articles: is there a clear objective that addres ses one or several 
testable research questions? (Brief or other article types: is there a clear objective?)  
Yes - there is a clear objective  
 
DESIGN - Is the current approach (including controls and analysis protocols) appropriate for the 
objective?  
Yes - the approach is appropriate  
 
EXECUTION - Are the experiments and analyses performed with sufficient technical rigor to 
allow confidence in the results?  
Yes - experiments and analyses were performed appropriately  
 
STATISTICS - Is the use of statistics in th e manuscript appropriate?  
Yes - appropriate statistical analyses have been used in the study  
 
INTERPRETATION - Is the current interpretation/discussion of the results reasonable and not 
overstated?  
Yes - the author's interpretation is reasonable  
 
OVERALL MANUSCRIPT POTENTIAL - Has the author addressed your concerns sufficiently 
for you to now recommend the work as a technically sound contribution? If not, can further 
revisions be made to make the work technically sound?  
Yes - current version is tec hnically sound  
 
PEER REVIEWER COMMENTS:  
 
GENERAL COMMENTS: Yes, they have responded adequately and made the appropriate 
changes. The manuscript has improved in quality  
ADDITIONAL REQUESTS/SUGGESTIONS:  
no further comments  
 
Publons Reviewer Recognition . Springer Nature can send verification of this review directly to  
Publons (a subsidiary of Clarivate Analytics). If you would 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 upon 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 email 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 derivative metadata for the benefit of  
Publons and you as a reviewer, carefully considering the sensitivity of such inf ormation. For 
example, Publons may verify your record as a reviewer by updating your profile published on its  
webservice if you have registered for such service or help editors to identify candidate reviewers.  
Please find the details of processing in Publo ns’ privacy policy https://publons.com/about/terms  
 
No 
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 t he 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:  
 
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, f ees, funding, or salary from an 
organisation that may in any way gain or lose financially from the public ation of this 
manuscript, either now or in the future?  
 
2. Do you hold any stocks or shares in an organisation t hat 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 curre ntly 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 in terests' 
below. If your reply is yes to any, please g ive details below.  
 
This reviewer has been recruited by a partner organization, Research Squar e. Reviewers w ith 
declared or apparent competing interests are not utilized for t hese reviews. This reviewer has 
agreed to publication of their comments online under a Creat ive Commons Attribution License 
attributed to Research Square and was paid a small honorarium for  completing the review within 
a specified timeframe. Honoraria for reviews such as this are paid regardless of the reviewer 
recommendation.  
 
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  editorial office 
before completing the review.If you wish, you can include your name in your publish ed 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 do not publish my name with my report.  
(default)  
assistant