Liu, Ju
Yin, Jian
Liu, Yiwei
Xu, Zhijian
Zhang, Kai
Article History
Received: 25 January 2021
Accepted: 28 August 2021
First Online: 15 September 2021
Declarations
:
: The study was performed according to the guidelines of the Helsinki declaration. All participants provided written informed consent. This study was approved by the ethical committee board of Cancer Hospital/Institute of Chinese Academy of Medical Sciences.
: Not applicable.
: The authors declare that they have no competing interests.