Ethics statement
WEST
The studies involving humans were approved by Ethics Committee of West China Hospital of Sichuan University for approval(No:965). The studies were conducted in accordance with the local legislation and institutional requirements. Written informed consent for participation in this study was provided by the participants’ legal guardians/next of kin. Written informed consent was obtained from the minor(s)’ legal guardian/next of kin for the publication of any potentially identifiable images or data included in this article.