Funding for this research was provided by:
Ministry of Science and Technology of the People's Republic of China (2018YFC1313004)
Chongqing Science and Technology Commission (cstc2016shms-ztzx0042)
General Clinical Medical Research Program of Children's Hospital of Chongqing Medical University (YBXM-2019-003)
Article History
Received: 18 November 2020
Accepted: 6 January 2021
First Online: 5 March 2021
Compliance with ethical standards
:
: The authors declare no conflict of interest.
: The entire study was approved by the Medical Ethics Committee of Children’s Hospital of Chongqing Medical University and complies with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: For this type of study, formal consent is not required.
: Not applicable.
: All authors consent to the publication of this study.
: Not applicable.