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Authors
Wang, Yanxia http://orcid.org/0000-0002-1476-5237
Meng, Zhaoyan
Pei, Jianyin
Qian, Liu
Mao, Baohong
Li, Yamei
Li, Jing
Dai, Zhirong
Cao, Jianing
Zhang, Chunhua
Chen, Lina
Jin, Yuxia
Yi, Bin
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Funding
Funding for this research was provided by:
Gansu Province Science and Technology Key R&D Special Plan (17YF1FA108)
Lanzhou Science and Technology Bureau (2019-RC-60)
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Article History
Received: 13 August 2020
Accepted: 12 February 2021
First Online: 8 March 2021
Ethics approval and consent to participate
: Ethics approval for this prospective cohort study was obtained from the Gansu Provincial Maternity and Child-care Hospital’s Ethics Committee (File NO.:[2017] GSFY (16). The standard informed consent form and the confidentiality agreement for all participants were signed and preserved after they had been introduced to the purpose of the study and informed about their right to interrupt the interview at any time or decline to be interviewed without any future prejudice. The collected data were anonymous and could not be linked to any particular respondent. No payments were made for participation in the studies.
: Not applicable.
: The authors declare that they have no competing interests.
