Review for 10.1186/s12876-021-02076-x (2022)

Reviewer’s report
Title: 
A Large Undifferentiated Sarcoma of the Liver in a 13-year-old Girl Treated with Anatomical
Resection: A Case Report and Review of the Literature
Version: 
1 
Date: 
14 Dec 2021
Reviewer's report:
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Is the study design appropriate to answer the research question (including the use of appropriate controls),
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