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S-WL and H-CL contributed equally.
Contributors S-WL and H-CL contributed to the conception of the article, initiated the draft of the article, revised the article and contributed equally to the article. C-LL conducted the data analysis and revised the article. K-FL participated in the data interpretation and revised the article.
Funding This study was supported in part by the Ministry of Health and Welfare, Taiwan (MOHW107-TDU-B-212-123004).
Disclaimer This funding agency did not influence the study design, data collection and analysis, decision to publish or preparation of the manuscript.
Competing interests None declared.
Patient consent Not required.
Ethics approval The study was conducted in accordance with the Declaration of Helsinki. The study was approved by the Research Ethics Committee of China Medical University and Hospital in Taiwan (CMUH-104-REC2-115).
Provenance and peer review Not commissioned; externally peer reviewed.