. 2020 Feb 29;7(2):161–169. doi: 10.1016/j.ijnss.2020.02.002
© 2020 Chinese Nursing Association. Production and hosting by Elsevier B.V.
This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).