Funding for this research was provided by:
Subitem Fund for Education (Public Hygiene) of Science & Technology Fund Project the Technological Invention and Creative Design Program of the Shenzhen Nanshan District (2019018)
Received: 30 January 2020
Accepted: 26 November 2020
First Online: 7 January 2021
Ethics approval and consent to participate
: All procedures were conducted according to the protocols and guidelines approved by Ethics Committee of the Children’s Hospital of Chongqing Medical University and were performed following the Declaration of Helsinki.
: Not applicable.
: The authors declare that they have no competing interests.