RT Journal Article SR Electronic T1 Immunosuppressive checkpoint Siglec-15: a vital new piece of the cancer immunotherapy jigsaw puzzle JF Cancer Biology and Medicine JO Cancer Biol Med FD China Anti-Cancer Association SP 205 OP 210 DO 10.20892/j.issn.2095-3941.2018.0141 VO 16 IS 2 A1 Xiubao Ren YR 2019 UL http://www.cancerbiomed.org/content/16/2/205.abstract AB