Funding for this research was provided by:
National Natural Science Foundation of China (81870373, 81500449)
Natural Science Foundation of Shanghai (16ZR1428700)
Shanghai Hospital Development Center New Frontier Technology Joint Research Project (SHDC12017115)
Shanghai Municipal Commission of Health and Family Planning Key Project (2017ZZ02019)
Received: 11 October 2019
Accepted: 16 April 2020
First Online: 29 April 2020
Ethics approval and consent to participate
: Written informed consent was obtained from the parents of the patients for the genetic study and publication of this study. The study was approved by the Regional Ethical Review Board in Shanghai Children’s Hospital.
: All authors have read and approved the content, and they agree to submit it for consideration for publication in the journal.
: The authors declare that they have no competing interests.