Liu, Lidong
Zhang, Zhiwei
Zhang, Guoxiang
Wang, Ting
Ma, Yingchun
Guo, Wei
Article History
Received: 8 June 2020
Accepted: 15 September 2020
First Online: 20 September 2020
Ethics approval and consent to participate
: The present study was approved by the Ethics Committee of The First Affiliated Hospital of Shandong First Medical University (Jinan, China).
: Not applicable.
: The authors declare that they have no competing interests.