Funding for this research was provided by:
China Postdoctoral Science Foundation (2014M552624)
the National Natural Science Foundation of Shanghai (1438600, 19ZR1400300)
Received: 24 May 2019
Accepted: 4 November 2019
First Online: 9 December 2019
Ethics approval and consent to participate
: All procedures performed in studies involving human participants and animals 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 of the patients provided signed informed consent. The medical ethics committee of Cao county people’s hospital approved the retrieval method for cancer specimens.
: The authors declare that they have no competing interests.