Funding for this research was provided by:
National Natural Science Foundation of China (81570470)
Text and Data Mining valid from 2020-04-18
Received: 26 August 2019
Accepted: 6 April 2020
First Online: 18 April 2020
Ethics approval and consent to participate
: Our article was published with the consent of the child’s parents and approved by the Ethics Committee of Children’s Hospital of Nanjing Medical University.
: The authors declare that they have no competing interests.