Funding for this research was provided by:
Sister Institution Network Fund of the University of Texas MD Anderson Cancer Center
Medical Scientific Research Foundation of Guangdong Province, China (A2017009)
Received: 20 September 2017
Accepted: 15 February 2018
First Online: 27 February 2018
Ethics approval and consent to participate
: This study was ethically approved by Sun Yat-sen University Cancer Center IRB (Approval No: YB2017-030), and has been granted exemption from requiring informed consent to participate from participants.
: Not applicable.
: The authors declare that they have no competing interests.
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