Funding for this research was provided by:
National Natural Science Foundation of China (81772054)
Received: 19 April 2021
Accepted: 23 July 2021
First Online: 29 July 2021
: The study was based on existing dataset and was approved by the Ethics Committee of the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University.
: Not applicable.
: We declared no conflicts of interest.