Ma, Zhen-Zhen
Sun, Hong-Sheng
Lv, Ji-Cai
Guo, Lei
Yang, Qing-Rui
Funding for this research was provided by:
the National Natural Science Foundation of China (No. 81671605)
the Key Research & Development Project of Shandong Province (No. 2015GSF118002)
Article History
Received: 6 June 2018
Accepted: 20 August 2018
First Online: 3 September 2018
Ethics approval and consent to participate
: The study was approved by the ethics committee of Shandong Provincial Hospital affiliated to Shandong University, and all participants had signed informed consents.
: We declare the consent for publication.
: The authors declare that they have no competing interests.
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