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Authors
Li, Hui
Liu, Ying
Li, Qian
Fan, Jialing
Gan, Lin
Wang, Yixuan
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Funding
Funding for this research was provided by:
Scientific Research Topics of Heilongjiang Health and Family Planning Commission (2016-064)
Research Project of Weigao Scientific Research Fund of Heilongjiang Nursing Society (201851101002)
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Article History
Received: 18 July 2019
Accepted: 7 February 2020
First Online: 3 March 2020
Compliance with ethical standards
:
: The authors declare no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. The study was approved by the ethic committee of Harbin Medical University (No. SYDW2019-003).
: Informed consent was obtained from all individual participants included in the study.
