Funding for this research was provided by:
National Natural Science Foundation of China (81472861)
Key Project of Zhejiang Province Science and Technology Plan, China (2014C03048-1)
Medical Science and Technology Project of Zhejiang Province, China (2014KYB219; 2017196976)
Received: 18 January 2021
Accepted: 29 March 2021
First Online: 7 April 2021
: This study protocol was approved by the Ethics Committee of the 903rd PLA Hospital and informed consent was obtained from all individual participants included in the study. All procedures performed in the studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: All authors have approved the manuscript and agree with the publication in BMC Cancer.
: The authors declare that they have no competing interests.