Chen, Xueyu
Xi, Hui
Ji, Long
Liu, Weihua
Shi, Fengxue
Chen, Yanru
Wang, Xiaohui
Zhang, Wenran
Sui, Xinxia
Wang, Xiaojun
Zhang, Haitao
Liu, Huamin
Li, Dong
Funding for this research was provided by:
National Natural Science Foundation of China (81773527)
National Natural Science Foundation of China (81973138)
Academic promotion programme of Shandong First Medical University (2019RC010)
Article History
Received: 31 March 2020
Accepted: 15 June 2020
First Online: 22 June 2020
Ethics approval and consent to participate
: The study was conducted according to the guidelines of the Helsinki Declaration and approved by the ethics committee of Jidong Oilfield Inc. Medical Centers and Kailuan General Hospital. Written informed consent was obtained from all participants.
: Not applicable.
: The authors confirm that there are no conflicts of interest.