Received: 15 March 2020
Accepted: 15 June 2020
First Online: 26 June 2020
Ethics approval and consent to participate
: All procedures performed in 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. This study is approved by Ethics Committee of Tianjin Medical University Cancer Institute and Hospital.
: It is unavailable.