Review for 10.1186/s12876-022-02462-z (2022)

Reviewer’s report
Title: 
Effect of ice water injection toward the duodenal papilla for preventing
post-ERCP pancreatitis: study protocol for 
a multicenter, single-blinded,
randomized controlled trial (EUTOPIA study)
Version: 
1 
Date: 
14 Jul 2022
Reviewer's report:
The authors have revised to satisfaction.
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Is the study design appropriate to answer the research question (including the use
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