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Authors
Chen, Geng-dong
Pang, Ting-ting
Li, Peng-sheng
Zhou, Zi-xing
Lin, Dong-xin
Fan, Da-zhi
Guo, Xiao-ling
Liu, Zheng-ping https://orcid.org/0000-0002-4964-0258
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Funding
Funding for this research was provided by:
The Basic and Applied Basic Research Foundation of Guangdong Province (2019A1515110163)
The Foundation of Bureau of Science and Technology of Foshan City (No. 1920001000294)
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Article History
Received: 11 February 2019
Accepted: 5 August 2020
First Online: 14 August 2020
Ethics approval and consent to participate
: The study was approved by the ethics committee of Affiliated Foshan Maternity & Child Healthcare Hospital, Southern Medical University. The Affiliated Foshan Maternity & Child Healthcare Hospital provided administrative permissions for the research team to access and use the data included in this research. Data were extracted from medical records, and the consent to participate was unavailable due to the retrospective design of the study and difficulty in reconnection; however, the private information was well protected.
: Not applicable.
: The authors declare that they have no competing interests.
