Review for 10.1186/s12876-020-01428-3 (2020)

Reviewer’ s report
Title: Pancreatic duct guidewire placement for biliary cannulation as a risk factor for stone residue
after endoscopic transpapillary stone removal
Version: 1Date: 04 Aug 2020
Reviewer's report:
The author has improved the article enough. The article is suitable for publication
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If your reply is yes to any, please give details below.
The author has improved the article enough. The article is suitable for publicationReviewer Publication Consent. I agree for my report to be made available under an Open Access
Creative Commons CC-BY License (http://creativecommons.org/licenses/by/4.0) if this manu-script is accepted for publication. Any comments that I do not wish to be included in the publishedreport have been included as confidential comments to the editor, which will not be published.If
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(default)
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?
YesAre the methods sufficiently described to allow the study to be repeated?YesIs the use of statistics and treatment of uncertainties appropriate?
Yes
Is the presentation of the work clear?NoAre the images in this manuscript (including electrophoretic gels and blots) free from apparent
manipulation?
No