Reviewer ’s report  
 
Title: Independent risk factors for axillary lymph node metastasis  in breast cancer patients with 
one or two positive sentinel lymph n odes 
 
Version: 1 Date: 20 Jan 2020  
 
Reviewer: Dimosthenis Chrysikos  
 
Reviewer's report:  
 
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Authors have responded precisely and sufficiently to poi nts mentioned in the revised manuscript.  
 
Are the methods appropriate and well described?  
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Yes 
 
Does the work include the necessary controls?  
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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?  
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assessment in your comments to the editors.  
 
I recommend additional statistical review  
 
Quality of written English  
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Acceptable  
 
 
Declaration of competing interests  
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I declare that I have no competing interests  
 
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I agree to the open peer review policy of the journal