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The Ethics Approval and Consent to Participate section now specifies that the study was approved by the Joint Ethics Committee of the Central South University Health Authority (Changsha, China). All procedures were performed in accordance with the relevant national guidelines and the ethical standards of the institutional research committee. Informed consent was obtained from all individual participants (healthy volunteers and patients) included in the study.","order":1,"name":"Ethics","label":"Consent to participate","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"The authors declare no competing interests.","order":2,"name":"Ethics","label":"Competing interests","group":{"name":"EthicsHeading","label":"Declarations"}}]}}