Funding for this research was provided by:
CAMS Innovation Fund for Medical Sciences (2017-I2M-3-005, 2016-I2M-3-013)
Text and Data Mining valid from 2019-05-09
Received: 28 December 2018
Accepted: 2 May 2019
First Online: 9 May 2019
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: All animal experiments were approved by The Animal Care and Use Committee of Cancer Hospital, Chinese Academy of Medical Science, and Peking Union Medical College (Beijing, China).
: Patients signed informed consent forms for sample collection.