Yuan, Zhen-nan
Wang, Hai-jun
Gao, Yong
Qu, Shi-ning
Huang, Chu-lin
Wang, Hao
Zhang, Hao
Yang, Quan-hui
Xing, Xue-zhong
Article History
Received: 21 August 2020
Accepted: 6 April 2021
First Online: 15 April 2021
Declarations
:
: This study used a public de-identified database thus informed consent and approval of the Institutional Review Board of Cancer Hospital, Chinese Academy of Medical Sciences was waived.
: Not Applicable.
: The authors declare that they have no competing interests.