Zhang, Xianbin http://orcid.org/0000-0002-0948-6698
Song, Jiaxin
Liu, Peng
Mazid, Mohammad Abdul
Lu, Lili
Shang, Yuru
Wei, Yushan
Gong, Peng
Ma, Li
Article History
Received: 18 January 2018
Accepted: 3 October 2018
First Online: 19 October 2018
Ethics approval and consent to participate
: The original data of our study were provided by SEER database (research data agreement to Xianbin Zhang) and the study protocol was approved by the Ethics Committee of the First Affiliated Hospital of Dalian Medical University (approval number: YJ-KY-FB-2017-05).
: Not applicable.
: The authors declare that they have no competing interests.
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