Gao, You-Shui http://orcid.org/0000-0001-9242-2486
Guo, Yan-Jie
Yu, Xin-Gang
Chen, Yang
Chen, Chen
Lu, Nan-Ji
Article History
Received: 6 June 2018
Accepted: 26 September 2018
First Online: 6 October 2018
Ethics approval and consent to participate
: The study has been approved by the ethics committee and was performed in accordance with the 1964 Declaration of Helsinki. Before starting the operation, written informed consent was obtained routinely. The medical therapy of the patients during hospitalization was performed independently of this research project.
: The authors declare that they have no competing interests.
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