Authors
Yan-Xia Duan
Henan Vocational College of Nursing, Anyang, China
Guo-Min Song
Department of Nursing, Tianjin Hospital, China
© 2021 Zi Zeng, Yan-Xia Duan, Guo-Min Song, published by Shanxi Medical Periodical Press
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.