Wang, Yun-jin
Chen, Liu
Zhang, Qi-liang
Lin, Yu
Cui, Xu
Chen, Jian-cai
Zhou, Chao-ming
Article History
Received: 21 October 2019
Accepted: 5 March 2020
First Online: 17 March 2020
Ethics approval and consent to participate
: This study was approved by the ethics committee of Fujian Maternity and Child Health Hospital and strictly adhered to the tenets of the Declaration of Helsinki (Code of Ethical approval for scientific research project:2019 Ethical Scientific Research Approval No. 2004). In addition, all patients’ guardians signed an informed consent form before the operation.
: Not applicable.
: The authors declare that they have no competing interests.