Text and Data Mining valid from 2019-10-28
Received: 15 November 2018
Accepted: 11 October 2019
First Online: 28 October 2019
Ethics approval and consent to participate
: Ethics approval for this participant contact study was obtained from the Research Ethics Committee of the Nursing School of Jilin University. Written consent was not required, and verbal agreement to participate in the survey was considered as consent. And the institutional review board approved the use of verbal consent. The participants were informed before commencement that they can withdraw at any stage while being surveyed and that such withdrawal will render their entire participation void. They were also informed of the anonymity of the data collection.
: Not applicable.
: The authors declare that they have no competing interests.