Dong, Gang
Chen, Hong
Shi, Yan
Jiang, Chunrong
Yang, Hongtao
Article History
Received: 31 December 2019
Accepted: 29 July 2020
First Online: 9 August 2020
Compliance with Ethical Standards
:
: The authors declare that they have no competing interests.
: All procedures performed in the current study were approved by the Ethics Committee of Weifang Nursing Vocational College. Written informed consent was obtained from all patients or their families.
: Written informed consents for publication of any associated data and accompanying images were obtained from all patients or their parents, guardians, or next of kin.