Review for 10.1186/s12876-021-02082-z (2022)

Reviewer’s report
Title: 
A case for improved assessment of gut permeability – a meta-analysis
quantifying the lactulose:mannitol ratio in coeliac and Crohn’s disease
Version: 
1 
Date: 
04 Nov 2021
Reviewer's report:
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Is the study design appropriate to answer the research question (including the use
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