Yuan, Xiao-wen
Li, Yi-Jian
Qiu, Quan
Luo, Zi-yuan
Zhao, Xue-feng https://orcid.org/0000-0001-8428-815X
Article History
Received: 21 September 2017
Accepted: 7 January 2019
First Online: 18 January 2019
Ethics approval and consent to participate
: This study was approved by the Ethical Committee of affiliated Nanhai Hospital of Southern Medical University (permit number: 20130106). Written informed consent was obtained from the patients involved in the study.
: Not applicable.
: The authors declare that they have no competing interests.
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