Funding for this research was provided by:
the youth project of National Nature Science Funding of China (8170019)
Shanghai Hospital Development Center Emerging Advanced Technology Joint Research Project (SHDC12014105)
Received: 12 January 2018
Accepted: 22 May 2018
First Online: 30 May 2018
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board of Fudan University Shanghai Cancer Center (Shanghai Cancer Center Ethical Committee, permission number 050432-4-1212B). Additional patient consent for this retrospective study was not required.
: The authors declare that they have no competing interests.
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