Funding for this research was provided by:
National Key R&D Program of China (2016YFC1000500 2016YFC1000501)
Received: 28 February 2020
Accepted: 14 April 2020
First Online: 23 May 2020
Ethics approval and consent to participate
: This study was conducted in accordance with the Declaration of Helsinki and was approved by the Medical Ethics Committee of Peking University Third Hospital.
: Written informed consent was provided by the patient’s parents.
: The authors declare that they have no competing interests.