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Presented at This work was presented at the 72nd annual meeting of the Korean Pain Society, in Seoul, Korea, November 20, 2021.
Contributors YL: Conduct of the study, analysis and interpretation of data, reporting, and writing—original draft preparation. D-HK: Conduct of the study, data curation and acquisition, and interpretation of data. JP: Data curation and analysis and interpretation of data. S-SC: Planning, conception, design, and conduct of the study; analysis and interpretation of data; writing—review and editing of the manuscript; and supervision. J-WS: Planning, conception, design, and conduct of the study; writing—review and editing of the manuscript; and project administration. All authors critically revised the manuscript. All authors approved the final version of the manuscript.
Funding This research was partially supported by Daewon Pharmaceutical.
Disclaimer The funder had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.
Competing interests None declared.
Provenance and peer review Not commissioned; externally peer reviewed.
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