Review for 10.1186/s12876-021-01732-6 (2021)

Reviewer’s report
Title: 
Association between surgical volumes and hospital mortality in patients: a
living donor liver transplantation single center experience
Version: 
0 
Date: 
21 Sep 2020
Reviewer's report:
The manuscript of Hsieh et al. is an well written retrospective study from a
single institution. The authors analyzed 15 years experience of living donor liver
transplantation. They observed that the most significative factor for a hospital
mortality was the volume procedure of 30 LDLT. 
It is an important message for the transplant community. 
The manuscript can be accepted as it.
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Is the study design appropriate to answer the research question (including the use
of appropriate controls), and are the conclusions supported by the evidence
presented?
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