Shen, Gang
Shen, Hongyu
Zhang, Jing
Yan, Qingtao
Liu, Huixian
Funding for this research was provided by:
Weifang Science and Technology Bureau (2016YX001, 2019YX007)
Article History
Received: 1 March 2020
Accepted: 29 July 2020
First Online: 5 August 2020
Ethics approval and consent to participate
: The study was approved by the Ethics Committee of Weifang People’s Hospital before it started.
: Not applicable.
: The authors declare that they have no competing interests.