Funding for this research was provided by:
National Key Clinical Specialty Discipline Construction Program of China (2011-873)
Received: 19 May 2020
Accepted: 21 July 2020
First Online: 30 July 2020
Ethics approval and consent to participate
: The study was approved by the Ethics Committee of Children’s Hospital of Chongqing Medical University (File No.: 201813). All methods were performed in accordance with the relevant guidelines and regulations. All study participants provided written consents for future research, guardians provided the consents on behalf of patients under 16 years.
: Not applicable.
: The authors declare no financial and non-financial competing interests.