Funding for this research was provided by:
National Key Clinical Specialty Discipline Construction Program of China (2017YFC1309604)
the Clinical Nursing Research Fund Project of the Second Xiangya Hospital (2017-YHL-03)
Text and Data Mining valid from 2020-03-10
Received: 20 August 2019
Accepted: 27 February 2020
First Online: 10 March 2020
Ethics approval and consent to participate
: The study was approved by the Research Ethics Committee of the Second Xiangya Hospital, Central South University. All participants provided written informed consent prior to participation.
: Not applicable.
: The authors declare that they have no competing interests.