Review for 10.1186/s12876-020-01583-7 (2021)

Reviewer’s report
Title: 
Effectiveness of introducing a 20-gauge core biopsy needle with a core
trap in EUS-FNA/B for diagnosing pancreatic cancer
Version: 
1 
Date: 
16 Nov 2020
Reviewer's report:
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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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from apparent manipulation?
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