Zhang, Hao-ran
Zhang, Jing-yu
Yang, Xiong-gang
Qiao, Rui-qi
Li, Ji-kai
Ren, Zhi-peng
Hu, Yong-cheng http://orcid.org/0000-0002-9846-6735
Article History
Received: 11 April 2020
Accepted: 12 May 2020
First Online: 20 May 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. The study was approved by the ethics committee of the Tianjin Hospital.