Song, Zhe
Wang, Qian
Ma, Teng
Wang, Chen
Yang, Na
Xue, Hanzhong
Li, Zhong
Zhu, Yangjun
Zhang, Kun
Article History
Received: 1 January 2019
Accepted: 9 April 2019
First Online: 24 April 2019
Ethics approval and consent to participate
: This study was approved by the Institutional Review Committee of Honghui Hospital, Xi’an Jiaotong University<b>.</b> All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. All patients signed informed consent forms prior to the study.
: Not applicable.
: The authors declare that they have no competing interests.
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