Funding for this research was provided by:
National Natural Science Foundation of China (81570567)
Text and Data Mining valid from 2019-07-09
Received: 12 December 2018
Accepted: 24 June 2019
First Online: 9 July 2019
Ethics approval and consent to participate
: This article is a retrospective study and does not contain any studies with human subjects performed by any of the authors. So, the ethical approval was not necessary and Jinshan Hospital of Fudan University ethics committee can offer exempt ethical statement in support. Informed consent was obtained from the child’s parents.
: Written informed consent for publication of clinical details was obtained from the guardians of the patient.
: The authors declare that they have no competing interests.