Updates are available Correction dated 2021-05-12
Click to view Correction: https://doi.org/10.1186/s12884-021-03841-2
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Authors
Guo, Xiaojing
Li, Xiaoqiong
Qi, Tingting
Pan, Zhaojun
Zhu, Xiaoqin
Wang, Hui
Dong, Ying
Yue, Hongni
Sun, Bo
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Funding
Funding for this research was provided by:
Jiangsu Provincial Commission of Health and Family Planning (F201402)
Shanghai Municipal Health Bureau (Project Young Physician Investigator)
Young Scientists Fund (81501288)
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Article History
Received: 16 August 2020
Accepted: 17 March 2021
First Online: 10 April 2021
Change Date: 12 May 2021
Change Type: Correction
Change Details: A Correction to this paper has been published:
Change Details: https://doi.org/10.1186/s12884-021-03841-2
Declarations
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: The ethics committee of Children’s Hospital of Fudan University approved the study design and protocol, and waived the need for consent (#2019–194). This approval was adopted and approved by Huai’an Women and Children’s Hospital and all participated hospitals in accordance with the Chinese regulations for clinical practice and investigation ( ). The permissions and the names of the ethics committees and scientific committees (institutional review board) of the major participating hospitals are referred to Zhu X, et al. <i>BMC Pregnancy Childbirth</i>. 2019; 19(1): 224.
: Not applicable.
: All the authors have declared no any financial and non-financial competing interests to disclose.
