Zhou, Guoyu
Yang, Meng
Chai, Jian
Sun, Renjie
Zhang, Junxi
Huang, Hui
Zhang, Yawei
Deng, Qihong
Jiang, Lifang
Funding for this research was provided by:
National Natural Science Foundation of China (81972981, 81673116)
Scientific and Technological Project of Henan Province (202102310622)
Opening Foundation of National Health Commission Key Laboratory of Birth Defects Prevention & Henan Key Laboratory of Population Defects Prevention (ZD202001)
Article History
Received: 10 June 2020
Accepted: 27 October 2020
First Online: 3 November 2020
Compliance with ethical standards
:
: The authors declare that they have no competing interests.
: This retrospective chart review study involving human participants was in accordance with the ethical standards of the institutional and national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. The study design was approved by the Ethics Committee of Zhengzhou University. And the private information was de-identified to protect the privacy of participants.
: Not applicable.