Review for 10.1186/s12876-021-01679-8 (2021)

Reviewer’s report
Title: 
Outcomes and survival of infants with congenital duodenal obstruction
following Kimura procedure with post-anastomosis jejunostomy feeding tube
Version: 
2 
Date: 
10 Feb 2021
Reviewer's report:
The authors responded to all mentionned points adequately and adressed 
them in
a reasonable manner.
Selection bias stays the main concern of this study, since allocation to a group
was according to the surgeons choice. This is adressed in the discussion and
since no better data is available it is woth to publish these results. A randomized
trial would be needed to give definitive answers, eventually the authors might
plan such a study since in their center a resonable number of Kimura procedures
is performed.
Two details catched my eye re-reading the manuscript:
- Title on X axis of Kaplan Meier curve: Sould be "time (days)" not "Overall
survival")
- Methods section line 98: "presence of peristalsis": how was that assessed? is it
"presence of bowel sounds"?
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Is the study design appropriate to answer the research question (including the use
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