Wang, Yan
Chu, Yijing
Ren, Xianfeng
Xiang, Hongfei
Xi, Yongming
Ma, Xuexiao
Zhu, Kai
Guo, Zhu
Zhou, Chuanli
Zhang, Guoqing
Chen, Bohua
Funding for this research was provided by:
National Natural Science Foundation of China (81772412, 81802190, 81871804, 81672200)
Article History
Received: 26 February 2019
Revised: 22 May 2019
Accepted: 24 May 2019
First Online: 13 June 2019
Ethics approval and consent to participate
: The study was approved by the Ethics Committee of the Qingdao University Affiliated Hospital. All participants provided a written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.