Wang, Zhongying
Su, Dongmei
Liu, Shanhe
Zheng, Guiqian
Zhang, Gaobo
Cui, Tingsong
Ma, Xu
Sun, Zhaoyi
Hu, Shanshan
Article History
Received: 12 January 2021
Accepted: 16 March 2021
First Online: 26 March 2021
Declarations
:
: The present study complied with the Declaration of Helsinki for research involving human subjects and was approved by the research ethics committee of Heilongjiang Provincial People’s Hospital. Written informed consent was obtained from each patient.
: Not applicable.
: The authors declare that they have no competing interests.