Hou, Yaping
Yang, Jiexia
Qi, Yiming
Guo, Fangfang
Peng, Haishan
Wang, Dongmei
Wang, Yixia
Luo, Xiaohui
Li, Yi
Yin, Aihua
Funding for this research was provided by:
The Third Subsidized Project of the Special Subject on Reproductive Health and Prevention and Control of Major Birth Defects of the 13th Five-Year Plan Foundation of China (2016YFC1000703)
Medical Scientific Research Foundation of Guangdong Province, China (B2017057)
Article History
Received: 11 February 2019
Accepted: 17 October 2019
First Online: 4 December 2019
Ethics approval and consent to participate
: This study was approved by the Ethics Committee of Guangdong Women and Children Hospital, Guangzhou, Guangdong 510010, China. All participants gave written informed consent to take part in the present study.
: Consent for publication is not applicable.
: The authors declare that they have no competing interests.