Wang, Ying
Qu, Xiao
Kam, Ngar-Woon
Wang, Kai
Shen, Hongchang
Liu, Qi
Du, Jiajun
Funding for this research was provided by:
Natural Science Foundation of Shandong Province (ZR2013HZ001, ZR2014HM100)
National Natural Science Foundation of China (81301728)
Article History
Received: 3 July 2017
Accepted: 16 May 2018
First Online: 26 June 2018
Ethics approval and consent to participate
: All patients gave written informed consent for their information to be stored in the hospital database and used for research. Ethical approval was obtained from Provincial Hospital Affiliated to Shandong University ethics committee, and the study was carried out in accordance with the approved guidelines.
: The authors declare that they have no competing interests.
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