Wang, Chao-Yang
Yang, Jin
Zi, Hao
Zheng, Zhong-Li
Li, Bing-Hui
Wang, Yang
Ge, Zheng
Jian, Guang-Xu
Lyu, Jun
Li, Xiao-Dong
Ren, Xue-Qun http://orcid.org/0000-0002-3393-7292
Article History
Received: 11 June 2019
Accepted: 23 December 2019
First Online: 6 January 2020
Ethics approval and consent to participate
: All of the authors signed the “SEER Research Data Agreement” in order to protect the patients’ privacy, which is consistent with ethical principles.
: All authors listed approved the publication of the manuscript.
: The authors declare that they have no competing interests.