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As no personal information was involved in this study, the requirement for separate ethical approval was deemed unnecessary.This rest part of study involving human participants were reviewed and approved by the Ethics Committee of the First Affiliated Hospital, Chongqing Medical University, China, in accordance with the Declaration of Helsinki.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval"}},{"value":"The patients\/participants provided their written informed consent to participate in this study.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Informed consent"}}]}}