Zhang, Jin
Chen, Guo-dong
Qiu, Jiang
Liu, Guo-chang
Chen, Li-zhong
Fu, Kai
Wu, Zi-xuan
Funding for this research was provided by:
National Natural Science Foundation of China (81470976)
Guangzhou Institute of Pediatrics/Guangzhou Women and Children's Medical Center (YIP-2019-007)
Article History
Received: 27 July 2019
Accepted: 18 November 2019
First Online: 3 December 2019
Ethics approval and consent to participate
: The Regional Ethics Committee of our center (the First Affiliated Hospital of Sun Yat-sen University and Guangzhou Women and Children’s Medical Center) approved this study, and all patients signed informed consent forms.
: Not applicable.
: The authors declare that they have no competing interests.