Tong, Jia-Ning
Wu, Lin-Lin
Chen, Yi-Xuan
Guan, Xiao-Nian
Tian, Fu-Ying
Zhang, Hua-Fan
Liu, Kan
Yin, Ai-Qi
Wu, Xiao-Xia
Prof, Jian-Min Niu
Article History
Received: 23 April 2021
Accepted: 16 July 2021
First Online: 3 August 2021
Compliance with ethical standards
:
: The authors declare no competing interests.
: This research was approved by the Review Board for Human Investigation and the Ethics Committee of Shenzhen Maternal and Children Hospital. Informed consent was obtained from every patient, and the investigations were performed in accordance with the principles of the Declaration of Helsinki.
: Written informed consent was obtained from individual or guardian participants.