Funding for this research was provided by:
Supporting Project for High Caliber Teachers in Beijing Municipal Universities during the “13th Five-year Plan” (IDHT20170516)
Text and Data Mining valid from 2019-11-21
Received: 23 August 2019
Accepted: 12 November 2019
First Online: 21 November 2019
Ethics approval and consent to participate
: Human samples were archived materials obtained with the informed consent of patients. Their use was approved by the Peking University Cancer Hospital Ethics Committee.
: The manuscript does not contain any individual person’s data in any form.
: The authors declare that they have no competing interests.