Zhang, Lei
Cheng, Hailing
Yue, Yuxia
Li, Shuangzhan
Zhang, Daping
He, Ruili http://orcid.org/0000-0001-9807-198X
Article History
Received: 9 November 2017
Accepted: 2 February 2018
First Online: 7 February 2018
Ethics approval and consent to participate
: Our study was performed with the approval of Ethical Committee in Huaihe Hospital and the informed consents from all participants.
: Not applicable.
: The authors declare that they have no competing interests.
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