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Contributors S-WL and KCCO initiated the draft of the article, revised the article and contributed equally to the article. C-LL and K-FL conducted the data analysis.
Funding This study was supported in part by the Ministry of Health and Welfare in Taiwan (MOHW108-TDU-B-212–1 33 004 and China Medical University Hospital in Taiwan (DMR-107–192). These funding agencies did not influence the study design, data collection and analysis, decision to publish or preparation of the manuscript.
Competing interests None declared.
Patient consent for publication Not required.
Ethics approval Insurance reimbursement claims data used in this study were available for public access. Patient identification numbers were scrambled to ensure confidentiality. Patient informed consent was not required. This 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; internally peer reviewed.
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