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The requirement for informed consent was waived by the institutional review board due to the retrospective nature of the study. The research was conducted in accordance with the ethical standards of the Declaration of Helsinki.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethical Approval\/Informed Consent"}},{"value":"This study was registered at Medicalresearch.org.cn (identifier MR-50-23-048489;\n                      \n                      ).","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Clinical Trial Registration"}}]}}