Chen, Li-Zhen
Ding, Hong-Yun
Liu, Shou-Sheng
Liu, Qun
Jiang, Xiang-Jun
Xin, Yong-Ning
Xuan, Shi-Ying
Funding for this research was provided by:
National Natural Science Foundation of China (31770837)
Qingdao Livelihood, Science and Technology Project, China (18-6-1-68-nsh)
Innovation research fund for new technologies and new projects of Qingdao Municipal Hospital President (ZYZJJ-YJ201817)
Article History
Received: 7 December 2018
Accepted: 30 January 2019
First Online: 9 February 2019
Ethics approval and consent to participate
: The study protocol was approved by the Ethics Committee of Qingdao Municipal Hospital before participation (Approval NO.2017–20). All the subjects have signed written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.
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