Reviewer’s report
Title: 
Evaluation of uterine scar healing by transvaginal ultrasound in 607
nonpregnant women with a history of cesarean section
Version: 
0 
Date: 
13 Jan 2021
Reviewer's report:
I read with great interest the manuscript, which falls within the aim of this
Journal. In my honest opinion, the topic is interesting enough to attract the
readers' attention. Nevertheless, authors should clarify some points and improve
the discussion, as suggested below.
Authors should consider the following recommendations:
- Manuscript should be further revised in order to correct some typos and
improve style.
- I would suggest to stress the recent pieces of evidence regarding uterine scar
healing after cesarean section (authors may refer to: PMID: 29741973).
- I recommend to highlight the risk of cesarean scar pregnancy, especially after
more than one cesarean section, and its management with different techniques
(PMID: 32802015).
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Is the study design appropriate to answer the research question (including the use
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