Wang, Xu
Cheng, Jian
Ling, Li
Su, Hong
Zhao, Desheng
Ni, Hong
Funding for this research was provided by:
The science and technology innovation strategy and soft science research in anhui province (1706a02020040)
Article History
Received: 13 May 2020
Accepted: 10 September 2020
First Online: 17 September 2020
Ethics approval and consent to participate
: This study was approved by the Ethics Committee of Anhui Provincial Children’s Hospital prior to the data being collected, with a waiver of informed consent because data were analyzed at aggregated level and no participants were contacted.
: Not applicable.
: The authors declare that they have no competing interests.