Xu, Shansen
Liu, Limin
Chen, Yanan
Liu, Mei
Lu, Tong
Wang, Huanxin
Liu, Shihao
Zhao, Mingming
Zhao, Limei
Funding for this research was provided by:
National Natural Science Foundation of China (81673510, 81703628)
Article History
Received: 7 August 2017
Accepted: 4 January 2018
First Online: 16 January 2018
Compliance with ethical standards
: All patients’ guardians were informed about the purpose of the study, and the Shengjing Hospital ethics committee approved the study.
: The authors declare that they have no conflict of interest.