Liu, Guanyi
Chen, Erman
Xu, Dingli
Ma, Weihu
Zhou, Leijie
Chen, Jianming
Pan, Zhijun
Article History
Received: 9 February 2018
Accepted: 1 August 2018
First Online: 16 August 2018
Ethics approval and consent to participate
: We obtained ethics approval from the Research Ethics Committee of Ningbo 6th Hospital (CODE: N6H-167). Written consent to evaluate the clinical results was obtained from all patients included in our study.
: Not applicable.
: The authors declare that they have no competing interests.
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