Zhang, Peng
Zhang, Ying
Gao, Lei
Yang, Jun
Article History
Received: 26 March 2020
Accepted: 20 July 2020
First Online: 23 July 2020
Ethics approval and consent to participate
: Ethics approval is obtained from the Institutional Review Board of Jinan Second People’s Hospital.
: Not applicable.
: The authors declare that they have no conflict of interest.