Wu, Huiying
Zhou, Ning
Lu, Lianwei
Chen, Xiwen
Liu, Tao
Zhang, Binbin
Liu, Hongsheng
Wen, Zhe
Funding for this research was provided by:
Guangdong Science and Technology Planning Project of Guangdong Province (2016A020215021)
Article History
Received: 12 February 2021
Accepted: 7 July 2021
First Online: 27 July 2021
Declarations
:
: The study was approved by our institutional review board (No. 2015090860). The requirement for informed consent was waived because of the nature of this retrospective study. 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.
: Not applicable.
: The authors declare that they have no competing interests.