Wan, Wenjuan
Shi, Lei
Li, Can
Funding for this research was provided by:
National Natural Science Foundation of China (81300794)
National Key Clinical Specialties Construction Program of China
Article History
Received: 17 July 2018
Accepted: 29 November 2018
First Online: 7 December 2018
Ethics approval and consent to participate
: The study was approved by the Institutional Review Board of the First Affiliated Hospital of Chongqing Medical University, and all patients provided their informed consent before starting the treatment. As it was a retrospective clinical study, all the patients were contacted by telephone to obtain verbal informed consent and it was approved by the ethics committee.
: Not applicable.
: The authors declare that they have no competing interests.
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