Zhao, Yu
Wu, Jian
Wei, Shijun
Xu, Feng
Kong, Changwang
Zhi, Xiaosong
Huang, Ming
Cai, Xianhua
Article History
Received: 16 April 2020
Accepted: 30 June 2020
First Online: 27 July 2020
Ethics approval and consent to participate
: The Internal Review Board of our institution reviewed and approved the study protocol. Because hospital records of the included patients were deidentified, signed informed consent for participation in the study was waived.
: Not applicable
: The authors declare that they have no competing interests.