Funding for this research was provided by:
National Natural Science Foundation of China (81572910)
Received: 26 October 2018
Accepted: 21 March 2019
First Online: 2 April 2019
Ethics approval and consent to participate
: None of the cell lines in the study required ethics approval for their use. This study was conducted in compliance with the guidelines of Helsinki Declaration of 2013 and approved by the Ethics Committee of Beijing Cancer Hospital. Written informed consent was obtained from all patients.
: Not applicable.
: The authors declare that they have no competing interests.
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