Funding for this research was provided by:
National Natural Science Foundation of China (#81672109, #81320108025)
Graduate Innovation Fund of Jilin University (101832018C088)
Text and Data Mining valid from 2019-03-08
Received: 19 August 2018
Accepted: 22 February 2019
First Online: 8 March 2019
Ethics approval and consent to participate
: Informed written consent was obtained from all participants. The present study has been reviewed and approved by the Institute Review Board of College of Nursing, Jilin University (access number: 2018031103).
: Not applicable.
: The authors declare that they have no competing interests to disclose.
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