Li, Man
Li, Fang
Li, Na
Sang, Jiao
Fan, Xiude
Deng, Huan
Zhang, Xiaoge
Han, Qunying
Lv, Yi
Liu, Zhengwen http://orcid.org/0000-0003-1525-1673
Article History
Received: 26 November 2017
Accepted: 21 March 2018
First Online: 2 April 2018
Ethics approval and consent to participate
: The study protocol conformed to the Declaration of Helsinki and was approved by the Ethics Committee of the First Affiliated Hospital of Xi’an Jiaotong University. All the participants provided written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.
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