Zhang, Rong-feng
Ma, Cheng-ming
Wang, Na
Yang, Ming-hui
Li, Wen-wen
Yin, Xiao-meng
Dong, Ying-xue
Yu, Xiao-hong
Xiao, Xian-jie
Xia, Yun-long
Gao, Lian-jun
Article History
Received: 21 February 2021
Accepted: 21 April 2021
First Online: 27 April 2021
Declarations
:
: All the procedures in studies involving human participants were performed in accordance with the 1964 Helsinki Declaration and its later amendments, or comparable ethical standards. This trial was approved by the Ethics Committee of the First Affiliated Hospital of Dalian Medical University. All the participants agreed to participate and written informed consents were obtained.
: Not applicable.
: The authors declare no conflicts of interest.