Funding for this research was provided by:
China National Funds for Distinguished Young Scientists (81500157)
the Natural Science Foundation of Beijing Municipality (7172071)
Received: 28 June 2019
Accepted: 23 October 2019
First Online: 4 November 2019
Ethics approval and consent to participate
: Ethical approval was provided by Beijing Tiantan Hospital Ethics Committee, Capital medical university (Ethical approval reference number: KYSB2016–170). Informed consent was written obtained when patients were admitted to Department of Neurosurgery or Department of Hematology before initiation of chemotherapy.
: Not applicable.
: The authors declare that they have no competing interests.