Reviewer’s report
Title: 
The potential risk of contralateral non-sentinel groin node metastasis in
women with early primary vulvar cancer following unilateral sentinel node
metastasis: a single center evaluation in University Hospital of Düsseldorf
Version: 
1 
Date: 
09 Dec 2020
Reviewer's report:
Comments to Author
Dear authors, thank you for the opportunity to revise once again this article. I
went into the new version of the manuscript and I am fine with the changes. Best
regards
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Is the study design appropriate to answer the research question (including the use
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presented?
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