Funding for this research was provided by:
National Natural Science Foundation of China (81771955)
Guangzhou Science, Technology and Innovation Commission (201704020134, 201704020228)
Sun Yat-sen University (No.2016002)
Text and Data Mining valid from 2018-09-28
Received: 24 August 2018
Accepted: 19 September 2018
First Online: 28 September 2018
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: The study was approved by the Institutional Review Committee of Sun Yat-sen University Cancer Centre in Guangzhou, China (YB2015-018-01). 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.
: Written informed consent for procedures was obtained from patients and families. All procedures were performed after obtaining informed consent in accordance with the approved protocol.